CN102699234B

CN102699234B - Driving mechanism for steel bar bender

Info

Publication number: CN102699234B
Application number: CN201210170319.XA
Authority: CN
Inventors: 陈振东
Original assignee: TJK Machinery Tianjin Co Ltd
Current assignee: TJK Machinery Tianjin Co Ltd
Priority date: 2012-05-29
Filing date: 2012-05-29
Publication date: 2014-06-18
Anticipated expiration: 2032-05-29
Also published as: CN102699234A

Abstract

The invention discloses a transmission mechanism of a steel bar bending machine. The transmission mechanism of the steel bar bending machine includes: a frame; a transmission mechanism; a rotating disk equipped with a bending shaft. , the upper part of the housing is fixed on the frame below the rotating disk; the lower end of the central shaft is fixed on the inner bottom of the housing, and the upper end of the central shaft penetrates and protrudes from the central hole of the rotating disk; the bottom of the rotating disk is fixed on the planetary reducer At the output end of the mechanism, the planetary reduction mechanism is hingedly supported between the housing and the central shaft. The beneficial effects of the present invention are: the diameter of the central shaft can be increased, and large-torque rotation can be realized to bend steel bars with larger diameters; the planetary gear in the planetary reduction mechanism is used to drive the planetary frame as the output of the transmission mechanism, which can realize stable transmission speed and high precision. High; the housing and the ring gear are processed in one piece, which increases the strength of the gear teeth, reduces the processing error, reduces the overall weight and volume of the transmission mechanism of the steel bar bending machine, and reduces the manufacturing cost.

Description

The transmission mechanism of angle-bender

Technical field

What the present invention relates to is transmission mechanism, particularly be the transmission mechanism of angle-bender.

Background technology

Described angle-bender is the special equipment for moment reinforcement, the angle-bender of prior art and and connected transmission mechanism comprise: casing; Be arranged on the central shaft on cabinet panel; The bending axis that can rotate around central shaft of central shaft one side; Described bending axis is positioned at the eccentric end of cranking arm, described in transmission central shaft one end in the core connect box of cranking arm, the transmission central shaft other end connects motor reducer output shaft.

There is following shortcoming in the transmission mechanism of the angle-bender of above-mentioned prior art: first, the axiality that above-mentioned motor reducer output shaft and transmission central shaft are installed requires strict, slightly deviation two central shaft serious wear, have not only reduced the durability of workpiece, have also strengthened assembling and maintenance difficulty.

Summary of the invention

The object of the invention is to overcome the deficiency of above-mentioned technology, provide a kind of angle-bender transmission mechanism central shaft to maintain static, can realize high pulling torque revolution, in assembling axiality require low, the transmission mechanism of angle-bender simple in structure.

The technical scheme solving the problems of the technologies described above is: a kind of transmission mechanism of angle-bender, and the transmission mechanism of described angle-bender comprises: frame; Transmission mechanism; The rotating disc of bending axis is housed, and described transmission mechanism comprises: the housing of planetary gear speed reducing mechanism is equipped with in its inside, and housing top is fixed in the frame below rotating disc; Be fixed with the lower end of central shaft in described housing inside bottom, the centre bore of rotating disc is run through and protruded from described central shaft upper end; The bottom of described rotating disc is fixed on the output of planetary gear speed reducing mechanism, and described planetary gear speed reducing mechanism hinged support is between housing and central shaft.

The invention has the beneficial effects as follows: the present invention overcomes the deficiencies in the prior art, angle-bender transmission mechanism central shaft of the present invention maintains static the central shaft as angle-bender simultaneously, therefore the diameter of central shaft can strengthen, and can realize the larger reinforcing bar of high pulling torque rotary bending diameter; The present invention adopts the moving planet carrier of the planet cingulum in star reducing gear to do the output of transmission mechanism, can realize transmission speed steady, and precision is high; Housing of the present invention and gear ring are integrated processing, increase gear teeth intensity, reduce mismachining tolerance, alleviate angle-bender transmission mechanism overall weight and volume, reduce manufacturing cost.

Brief description of the drawings

Fig. 1 is contour structures front view of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the half sectional view of transmission mechanism in Fig. 1;

Fig. 4 is A-A cutaway view in Fig. 3;

Fig. 5 is B-B cutaway view in Fig. 3.

" sequence number explanation in accompanying drawing "

1: bevel gear; 2: sun wheel body; 2a: the first driving gear; 2b: the second driving gear; 3: planet carrier; 3a: planet carrier gear; 4: output planetary frame; 4a: the protruding axle of output planetary frame; 5a: the first gear ring; 5b: the second gear ring; 6: central shaft; 7: the first groups of planetary gears; 8: the second groups of planetary gears, 9: bearing; 10: connecting axle; 11: motor; 12,13,14,15: bearing; 16: bending axis; 17: rotating disc; 18,20: screw; 19: frame plate; 22: bolt; 23: reinforcing bar; 100: transmission mechanism; 200: frame; 300: housing.

Detailed description of the invention

Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.

Fig. 1 is contour structures front view of the present invention; Fig. 2 is the top view of Fig. 1; Fig. 3 is the half sectional view of transmission mechanism in Fig. 1; Fig. 4 is A-A cutaway view in Fig. 3; Fig. 5 is B-B cutaway view in Fig. 3.

The invention provides a kind of transmission mechanism of angle-bender, the transmission mechanism of described angle-bender comprises: frame 200; Transmission mechanism 100; The rotating disc 17 of bending axis 16 is housed.

Described transmission mechanism 100 comprises: the housing 300 of planetary gear speed reducing mechanism is equipped with in its inside, and housing 300 tops are fixed in rotating disc 17 frame 200 below; Be fixed with the lower end of central shaft 6 in described housing 300 inside bottom, the centre bore of rotating disc 17 is run through and protruded from described central shaft 6 upper ends; The bottom of described rotating disc 17 is fixed on the output of planetary gear speed reducing mechanism, and described planetary gear speed reducing mechanism hinged support is between housing 300 and central shaft 6.

Described planetary gear speed reducing mechanism comprises triple reduction gearing:

First order deceleration device comprises: the first driving gear 2a of the sun wheel body 2 engaging with motor 11 gear of output end, and described sun wheel body 2 hinged supports are between central shaft 6 and housing 300, and described sun wheel body 2 rotating speeds are lower than motor 11 rotating speeds.

Second level deceleration device comprises: first group of planetary gear 7; Described first group of planetary gear 7 is engaged between the second driving gear 2b of sun wheel body 2 and fixing the first gear ring 5a of housing 300; Described first

Group planetary gear 7 hinged supports are in one end of planet carrier 3, and the centre bore of described planet carrier 3 is sleeved on central shaft 6, and described planet carrier 3 rotating speeds are lower than sun wheel body 2 rotating speeds.

Third level deceleration device comprises: second group of planetary gear 8; Described second group of planetary gear 8 is engaged between the planet carrier gear 3a of planet carrier 3 other ends and fixing the second gear ring 5b of housing 300; Described second group of planetary gear 8 hinged support are in output planetary frame 4 one end, the protruding axle 4a of output planetary frame of output planetary frame 4 other ends is fixed on the bottom of rotating disc 17 as the output of planetary gear speed reducing mechanism, described output planetary frame 4 hinged supports between central shaft 6 and housing 300 and rotating speed lower than planet carrier 3 rotating speeds.

The first driving gear 2a of described motor 11 gear of output end and sun wheel body 2 is bevel gears 1 of pair of meshing.

Described second group of planetary gear 8 is hinged on connecting axle 10, and described connecting axle 10 is fixed on output planetary frame 4 one end.

Described the first gear ring 5a and the second gear ring 5b and housing 300 are integral type structure.

For easy to process, as shown in Figure 3, the housing with the first gear ring 5a and the second gear ring 5b 300 separately made, then be combined as a whole with bolt 22.

More particularly, as shown in Figure 1 and Figure 2, housing 300 tops of angle-bender transmission mechanism provided by the invention are fixed on frame plate 19 by screw 20, and frame plate 19 is arranged on the top of frame 200; Described rotating disc 17 be fastened on by screw 18 housing 300 inside planetary gear speed reducing mechanism output and with planetary gear speed reducing mechanism rotation, between rotating disc 17 and frame plate 19 upper surfaces, have certain interval.Rotating disc 17 has central through hole, and the central shaft 6 of planetary gear speed reducing mechanism is arranged in rotating disc 17 central through holes and protrudes the flex point of rotating disc 17 upper surfaces as moment reinforcement; Described central shaft 6 lower ends are weldingly fixed on the bottom of housing 300 inner sides.

As shown in Figure 3, the first driving gear 2a of motor 11 gear of output end of the present invention and sun wheel body 2 adopts the bevel gear of pair of meshing, changes power direction of transfer, is convenient to overall installation and simplified structure.

Below planetary gear speed reducing mechanism triple reduction gearing of the present invention is described:

In described first order deceleration device, sun wheel body 2 is by bearing 14 and bearing 15 hinged supports between central shaft 6 and housing 300, and under motor 11 drives, sun wheel body 2 is realized and being rotated.

In the deceleration device of the described second level, the second driving gear 2b that sun wheel body 2 rotarily drives rotates, thereby drive first group of planetary gear 7 to rotate, first group of planetary gear 7 passes through bearing 9 hinge mounted one end at planet carrier 3, because the first gear ring 5a maintains static, 2 grades of decelerations are realized with 7 rotations of first group of planetary gear in one end of planetary wheel carrier 3

In described third level deceleration device, the planet carrier gear 3a that rotarily drives planet carrier 3 other ends due to planet carrier 3 rotates, because the second gear ring 5b maintains static, planet carrier gear 3a rotation just drives second group of planetary gear 8 to rotate, thereby second group of planetary gear 8 also drives output planetary frame 4 to rotate by bearing 9 hinged supports on the connecting axle 10 being integrated with output planetary frame 4, output planetary frame 4 is by bearing 12, 13 hinged supports are between central shaft 6 and housing 300, the protruding axle 4a of other end output planetary frame of output planetary frame 4 is fixed as one with screw 18 and rotating disc 17, rotating disc 17 is rotated with output planetary frame 4, bending axis 16 on rotating disc 17 rotates around central shaft 6, by be placed on rotating disc 17 above the reinforcing bar 23 between bending axis 16 and central shaft 6 carry out bending.

Claims

1. A transmission mechanism of a steel bar bending machine, the transmission mechanism of the steel bar bending machine includes: a frame (200); a transmission mechanism (100); a rotating disc (17) equipped with a bending shaft (16), characterized in that , the transmission mechanism (100) includes: a housing (300) with a planetary reduction mechanism inside, the upper part of the housing (300) is fixed on the frame (200) below the rotating disk (17); in the housing The bottom of the inner side of the body (300) is fixed with the lower end of the central shaft (6), and the upper end of the central shaft (6) penetrates and protrudes from the central hole of the rotating disk (17); the bottom of the rotating disk (17) is fixed on the planet The output end of the reduction mechanism, the planetary reduction mechanism is hingedly supported between the housing (300) and the central shaft (6);

The planetary reduction mechanism includes a three-stage reduction device: the first-stage reduction device includes: the first driving gear (2a) of the sun gear body (2) meshing with the output end gear of the motor (11), and the sun gear body (2 ) is hingedly supported between the central shaft (6) and the casing (300), and the rotation speed of the sun gear body (2) is lower than the rotation speed of the motor (11);

The second-stage reduction device includes: the first set of planetary gears (7); the first set of planetary gears (7) meshes with the second driving gear (2b) of the sun gear body (2) and is fixed to the casing (300) Between the first ring gear (5a); the first set of planetary gears (7) are hingedly supported on one end of the planetary carrier (3), and the center hole of the planetary carrier (3) is sleeved on the central shaft (6), The rotation speed of the planet carrier (3) is lower than the rotation speed of the sun gear body (2);

The third-stage reduction device includes: the second set of planetary gears (8); the second set of planetary gears (8) meshes with the planetary carrier gear (3a) at the other end of the planetary carrier (3) and is fixed to the housing (300) Between the second ring gear (5b); the second set of planetary gears (8) are hingedly supported on one end of the output planetary carrier (4), and the output planetary carrier camshaft (4a) at the other end of the output planetary carrier (4) acts as a planet The output end of the reduction mechanism is fixed on the bottom of the rotating disc (17), and the output planetary carrier (4) is hingedly supported between the central shaft (6) and the housing (300) with a rotation speed lower than that of the planetary carrier (3). the

2. The transmission mechanism of a steel bar bending machine according to claim 1, characterized in that the output gear of the motor (11) and the first driving gear (2a) of the sun gear body (2) are a pair meshing bevel gears. the

3. The transmission mechanism of a steel bar bending machine according to claim 1, characterized in that, the second set of planetary gears (8) are hinged on the connecting shaft (10), and the connecting shaft (10) is fixed At one end of the output planet carrier (4). the

4. The transmission mechanism of a steel bar bending machine according to claim 1, characterized in that the first ring gear (5a) and the second ring gear (5b) are integrated with the housing (300) . the