CN213981853U

CN213981853U - Three-in-one high-power speed reducer of crane

Info

Publication number: CN213981853U
Application number: CN202022539713.9U
Authority: CN
Inventors: 陈日标; 陈日进
Original assignee: Zhejiang Xincheng Reducer Technology Co ltd
Current assignee: Zhejiang Xincheng Reducer Technology Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-08-17
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a trinity high-power speed reducer of hoist, including quick-witted case, input shaft, output shaft and reduction gears install on quick-witted case, and the one end of input shaft is used for connecting the motor, and the other end is connected with the stopper. The utility model discloses connect the stopper on the input shaft to realize the reduction gear brake, cooperate the braking system of general hoist, can realize dual braking function, improved the reliability of braking greatly.

Description

Three-in-one high-power speed reducer of crane

Technical Field

The utility model relates to a speed reducer, more specifically the three-in-one high-power speed reducer of hoist that says so relates to.

Background

The crane needs to be repeatedly started and stopped during operation, so that the braking performance of the crane is very important. The existing crane is generally provided with a single brake on a motor or an output wheel shaft, and the braking function is limited. The high reliability of the large-tonnage brake of the crane can not be met.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a trinity high-power speed reducer of hoist connects the stopper on the speed reducer, improves brake performance.

In order to achieve the above purpose, the utility model provides a following technical scheme: the three-in-one high-power speed reducer of the crane comprises a case, an input shaft, an output shaft and a speed reducing mechanism, wherein the input shaft, the output shaft and the speed reducing mechanism are installed on the case, one end of the input shaft is used for being connected with a motor, and the other end of the input shaft is connected with a brake.

As a further improvement, the stopper includes the brake housing, and a housing, an at least brake block, an at least actuating lever and is used for driving the actuating mechanism of brake block, the installing port has been seted up on the shell, the brake housing sets up in the installing port, be provided with even shaft hole on the brake housing, the mounting groove has been seted up on the lateral wall of installing port, the brake block is installed in the mounting groove, set up the through-hole that runs through the shell on the inner wall of mounting groove, the one end of actuating lever is connected on the brake block, the other end stretches out the shell from the through-hole and is connected with actuating mechanism outward.

As a further improvement of the utility model, the actuating mechanism includes at least one cylinder and an at least brake arm, and the brake arm is set up to rotate around its middle part, and the one end of brake arm is articulated with the actuating lever, and the other end is connected with the output of cylinder.

As a further improvement, the brake block has two, and the actuating lever has two, connects respectively on two brake blocks, and the symmetry is provided with two mounting grooves and through-hole in the mounting groove, and it has two to drive actuating cylinder, and the brake arm has two, is connected with two cylinders and two actuating levers respectively.

As a further improvement, the one end of the machine case connecting motor is provided with a mounting bracket, and the mounting bracket is back to the one end fixedly connected with connecting flange of the machine case.

As a further improvement of the utility model, one end of the input shaft connecting motor is connected with an elastic coupling.

As a further improvement, the utility model also comprises a positioning sleeve, a clamping groove is arranged on the mounting bracket, a convex ring is arranged at the joint of the case and the mounting bracket, during installation, the one end of the positioning sleeve is clamped into the clamping groove, and the other end of the positioning sleeve is sleeved outside the convex ring.

The beneficial effects of the utility model, the during operation, cylinder drive brake arm rotates, drives actuating lever and brake block and removes towards the brake cover, and brake block extrusion brake cover makes brake cover and input shaft stall to reach the reduction gear brake, cooperate the braking system of general hoist, can realize dual braking function, improved the reliability of braking greatly.

Drawings

FIG. 1 is a block diagram of a reducer;

FIG. 2 is a structural view of the brake;

fig. 3 is an enlarged view of a portion of fig. 1 at the reference point.

Detailed Description

The present invention will be described in further detail with reference to embodiments shown in the drawings.

Referring to fig. 1 to 3, the three-in-one high-power speed reducer of the crane of the embodiment includes a case 1, an input shaft 2, an output shaft 3 and a speed reducing mechanism 4, wherein the input shaft 2, the output shaft 3 and the speed reducing mechanism 4 are installed on the case 1, one end of the input shaft 2 is used for connecting a motor, and the other end is connected with a brake 5.

Stopper 5 includes brake housing 51, shell 52, at least a slice brake block 53, at least a driving lever 54 and the actuating mechanism who is used for driving brake block 53, the installing port 521 has been seted up on the shell 52, brake housing 51 sets up in installing port 521, be provided with axle hole 511 on the brake housing 51, the mounting groove 522 has been seted up on the lateral wall of installing port 521, brake block 53 installs in mounting groove 522, set up the through-hole that runs through shell 52 on the inner wall of mounting groove 522, the one end of actuating lever 54 is connected on brake block 53, the other end stretches out to shell 52 from the through-hole and is connected with actuating mechanism outward.

The drive mechanism comprises at least one air cylinder 55 and at least one brake arm 56, the brake arm 56 being arranged to rotate around its middle, one end of the brake arm 56 being hinged to the drive rod 54 and the other end being connected to the output of the air cylinder 55.

The brake 5 can be installed in the cabinet 1, specifically: the shell 52 and the air cylinder 55 are fixed in the case 1, the brake arm 56 is hinged in the case 1 through a pin shaft, one end of the brake arm is connected with the air cylinder 55, and the other end of the brake arm is connected with the driving rod 54.

The brake 5 can also be installed outside the case 1, such as on the body of a crane, so that the brake has better heat dissipation performance. When the brake 5 is externally installed, the housing 52 can also be connected to the chassis 1 through a flange structure, and the input shaft 2 extends into the connecting shaft hole 511 to be connected with the brake sleeve 51 in a key mode.

During operation, the cylinder 55 drives the brake arm 56 to rotate, the driving rod 54 and the brake pad 53 are driven to move towards the brake sleeve 51, the brake pad 53 extrudes the brake sleeve 51, the brake sleeve 51 and the input shaft 2 stop rotating, and therefore the brake of the speed reducer is achieved.

The brake pads 53 can be one piece, two pieces, three pieces or more, and are evenly arranged in the shell 52, when the brake pads 53 are two pieces, one piece of the brake pads 53 can be driven only through one brake arm 56, and the other piece of the brake pads 53 is arranged close to the brake sleeve 51 as much as possible, so that the function of simultaneously contacting and braking the two brake pads 53 can be realized under the condition that one side is pushed.

Preferably, there are two brake pads 53, two driving rods 54 connected to the two brake pads 53, two mounting slots 522 and two through holes symmetrically formed in the mounting opening 521, two driving cylinders 55, and two braking arms 56 connected to the two cylinders 55 and the two driving rods 54. By designing the two brake pads 53 to simultaneously move toward the brake sleeve 51, wear failure or seizure due to manufacturing variations in the case of single-pad motion can be avoided.

The end of the case 1 connected with the motor is provided with a mounting bracket 6, and one end of the mounting bracket 6 back to the case 1 is fixedly connected with a connecting flange 61.

One end of the input shaft 2 connected with the motor is connected with an elastic coupling 7.

Still include position sleeve 8, seted up draw-in groove 62 on the installing support 6, the junction of quick-witted case 1 and installing support 6 is provided with bulge loop 11, and during the installation, the one end card of position sleeve 8 is gone into in draw-in groove 62, and the other end cover is outside bulge loop 11.

When the fixing device is installed, the positioning sleeve 8 is aligned with the convex ring 11 and the clamping groove 62, then the mounting bracket 6 is fixed on the case 1 through bolt connection, welding or other modes, and the positioning sleeve 8 is fixed between the case 1 and the installation. The design of the locating sleeve 8 is that before installation, the mounting bracket 6 and the case 1 are firstly located, so that the installation accuracy is improved, and the coaxiality between the motor and the input shaft 2 is improved.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a trinity high-power speed reducer of hoist which characterized in that: the motor-driven gearbox is characterized by comprising a case (1), an input shaft (2), an output shaft (3) and a speed reducing mechanism (4), wherein the input shaft (2), the output shaft (3) and the speed reducing mechanism (4) are installed on the case (1), one end of the input shaft (2) is used for being connected with a motor, and the other end of the input shaft is connected with a brake (5).

2. The three-in-one high-power speed reducer of the crane as claimed in claim 1, wherein: stopper (5) are including brake cover (51), shell (52), an at least brake block (53), an at least actuating lever (54) and be used for driving the actuating mechanism of brake block (53), installing port (521) have been seted up on shell (52), brake cover (51) set up in installing port (521), be provided with on brake cover (51) and link shaft hole (511), mounting groove (522) have been seted up on the lateral wall of installing port (521), install in mounting groove (522) brake block (53), set up the through-hole that runs through shell (52) on the inner wall of mounting groove (522), the one end of actuating lever (54) is connected on brake block (53), and the other end stretches out to shell (52) from the through-hole and is connected with actuating mechanism outward.

3. The three-in-one high-power speed reducer of the crane as claimed in claim 2, wherein: the driving mechanism comprises at least one air cylinder (55) and at least one brake arm (56), the brake arm (56) is arranged to rotate around the middle of the brake arm, one end of the brake arm (56) is hinged with the driving rod (54), and the other end of the brake arm is connected with the output end of the air cylinder (55).

4. The three-in-one high-power speed reducer of the crane as claimed in claim 3, wherein: the brake block (53) has two, actuating lever (54) have two, connect respectively on two brake block (53), the symmetry is provided with two mounting grooves (522) and through-hole in installing port (521), cylinder (55) have two, braking arm (56) have two, are connected with two cylinder (55) and two actuating lever (54) respectively.

5. The three-in-one high-power speed reducer of the crane as claimed in claim 1, wherein: the motor is characterized in that a mounting bracket (6) is arranged at one end, connected with the motor, of the case (1), and a connecting flange (61) is fixedly connected to one end, back to the case (1), of the mounting bracket (6).

6. The three-in-one high-power speed reducer of the crane as claimed in claim 1, wherein: one end of the input shaft (2) connected with the motor is connected with an elastic coupling (7).

7. The three-in-one high-power speed reducer of the crane as claimed in claim 5, wherein: still include position sleeve (8), draw-in groove (62) have been seted up on installing support (6), the junction of quick-witted case (1) and installing support (6) is provided with bulge loop (11), and during the installation, the one end card of position sleeve (8) is gone into in draw-in groove (62), and the other end cover is outside bulge loop (11).