CN217051429U

CN217051429U - Planetary carrier of crane speed reducer

Info

Publication number: CN217051429U
Application number: CN202220640527.0U
Authority: CN
Inventors: 张春丽; 王立建; 李元恒; 韩明
Original assignee: Henan Dongqi Machinery Co ltd
Current assignee: Henan Dongqi Machinery Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-07-26
Anticipated expiration: 2032-03-23

Abstract

The planet carrier is provided with a plurality of mounting holes which are uniformly distributed along the circumferential direction of the planet carrier; a fixing groove is formed in the mounting hole, is arranged along the radius direction of the planet carrier and is communicated with the mounting hole; a locking rod is slidably arranged in the fixing groove; a pressure spring is sleeved on the locking rod, a boss is arranged on the locking rod, one end of the pressure spring is fixedly connected to the bottom of the fixing groove, and the other end of the pressure spring is abutted to the boss; a planet wheel is arranged in the mounting hole; a connecting shaft is slidably arranged on the planet wheel, a groove is formed in the connecting shaft, and a locking block on the locking rod can extend into the groove; this hoist reduction gear planet carrier can be according to the different size of confirming by the deceleration moment of application to adjust the quantity of the planet wheel that needs the installation on the planet carrier, guarantee that planet wheel quantity is suitable, practice thrift the cost, simple structure, the practicality is strong.

Description

Planetary carrier of crane speed reducer

Technical Field

The utility model relates to a planet speed reduction technique, especially a crane reduction gear planet carrier.

Background

The crane refers to a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range; the bridge crane is hoisting equipment which is transversely erected above workshops, warehouses and stockyards for hoisting materials, and the shape of the bridge crane is similar to a bridge because two ends of the bridge crane are located on a high cement column or a metal bracket; the bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.

In order to enable the crane to be lifted by enough lifting force, a speed reducer is usually arranged on a lifting drum of the crane, the commonly used speed reducer is usually a planetary speed reducer, the number of planetary wheels in the planetary speed reducer is usually determined according to the magnitude of the torque to be decelerated, the cost is high when the number is too large, and the operation is unstable when the number is too small; the number of planet wheels in the existing planetary reducer is determined, and the planet wheels cannot be adjusted according to different application occasions, so that the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crane reduction gear planet carrier for solve the problem mentioned in the above-mentioned background art.

In order to solve the problems, the utility model provides a planet carrier of a crane speed reducer, wherein the planet carrier is provided with a plurality of mounting holes which are uniformly distributed along the circumferential direction of the planet carrier; a fixing groove is formed in the mounting hole, is arranged along the radius direction of the planet carrier and is communicated with the mounting hole; a locking rod is slidably arranged in the fixing groove, one end of the locking rod is provided with a locking block and extends into the mounting hole, and the other end of the locking rod extends out of the fixing groove; a pressure spring is sleeved on the locking rod, a boss is arranged on the locking rod, one end of the pressure spring is fixedly connected to the bottom of the fixing groove, and the other end of the pressure spring is abutted to the boss; a planet wheel is arranged in the mounting hole; a connecting shaft is slidably mounted on the planet wheel, a groove is formed in the connecting shaft, and a locking block on the locking rod can extend into the groove.

Furthermore, a pull block is arranged at one end, far away from the center of the planet carrier, of the locking rod.

Furthermore, rubber rings are arranged on the connecting shaft and on two sides of the planet wheel.

Further, an outer gear ring is arranged on the outer side of the planet carrier, and the planet wheel is meshed with the outer gear ring.

Further, the outer ring gear is rotatably mounted within the reducer housing.

Furthermore, a bearing is installed in the reducer shell, an outer ring of the bearing is fixedly installed in the reducer shell, and an inner ring of the bearing is fixedly connected with the outer gear ring.

Furthermore, the planet wheel is installed on one side of the planet carrier, and the other side of the planet carrier is fixedly connected with the speed reducer shell.

Furthermore, a through hole is formed in the center of the planet carrier, an input shaft is rotatably mounted on the speed reducer shell, and the input shaft penetrates through the through hole; the input shaft is provided with a gear, and the gear is meshed with the planet gear.

Furthermore, a sun rack is arranged on one side, far away from the input shaft, of the outer gear ring, an output shaft is fixedly installed at the center of the sun rack, and the output shaft extends out of the speed reducer shell.

Further, an output shaft and an input shaft on the speed reducer shell are coaxially arranged; rubber rings are arranged among the output shaft, the input shaft and the speed reducer shell.

The utility model has the advantages that: this hoist reduction gear planet carrier can be according to the different size of confirming by the deceleration moment of application to adjust the quantity of the planet wheel that needs the installation on the planet carrier, guarantee that planet wheel quantity is suitable, practice thrift the cost, simple structure, the practicality is strong.

Drawings

Fig. 1 is a schematic diagram of a half-section structure of a crane speed reducer according to an embodiment of the present invention;

fig. 2 is a front view of the overall structure of the planetary carrier according to the embodiment of the present invention;

fig. 3 is a side view of the overall structure of the planetary carrier according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a planet wheel according to an embodiment of the present invention.

In the figure: 1. a reducer housing; 11. an input shaft; 12. a bearing; 13. an output shaft; 2. a planet carrier; 21. a locking lever; 22. compressing the spring; 23. a boss; 24. pulling the block; 25. mounting holes; 3. a solar frame; 4. a planet wheel; 41. a connecting shaft; 42. a groove; 43. a rubber ring.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the embodiment of the planet carrier of the crane speed reducer of the present invention as shown in fig. 1 to 4, the planet carrier 2 is provided with a plurality of mounting holes 25, and the plurality of mounting holes 25 are uniformly distributed along the circumferential direction of the planet carrier 2; a fixing groove is formed in the mounting hole 25, is arranged along the radius direction of the planet carrier 2 and is communicated with the mounting hole 25; a locking rod 21 is slidably arranged in the fixing groove, one end of the locking rod 21 is provided with a locking block and extends into the mounting hole 25, and the other end of the locking rod 21 extends out of the fixing groove; a pressure spring 22 is sleeved on the locking rod 21, a boss 23 is arranged on the locking rod 21, one end of the pressure spring 22 is fixedly connected to the bottom of the fixing groove, and the other end of the pressure spring 22 abuts against the boss 23; the planet wheel 4 is arranged in the mounting hole 25; the planet wheel 4 is slidably provided with a connecting shaft 41, the connecting shaft 41 is provided with a groove 42, and a locking block on the locking rod 21 can extend into the groove 42.

When the planet carrier of the reducer of the crane is used, the installation number of the planet wheels on the planet carrier can be automatically adjusted according to different models of the crane; when the decelerated moment is large and a plurality of planet wheels 4 are required to be supported to ensure stable motion transmission, the connecting shaft 41 on the planet wheels 4 is aligned with the mounting hole 25 on the planet carrier 2, and then the connecting shaft 41 is inserted; after the insertion, the end of the connecting shaft 41 is provided with an inclined surface, the locking block at the lower end of the locking rod 21 is pushed by the inclined surface, the locking rod 21 is pushed up in the direction away from the center of the planet carrier 2, the rear connecting shaft 41 is continuously inserted, after the groove 42 on the connecting shaft 41 is inserted below the locking block, the locking block falls down and falls into the groove 42, and the installation of the planet gear 4 is finished; when the decelerated moment is small, too many planet wheels 4 are not needed, and the planet wheels 4 need to be disassembled, the locking rod 21 is lifted only by the end, extending out of the fixing groove, of the locking rod 21, so that the locking block is separated from the groove 42 on the connecting shaft 41 of the planet wheels 4, the connecting shaft 41 can be pulled out, and the planet wheels 4 are disassembled; the whole device is simple in structure and high in practicability.

In one embodiment of the present application, it is preferable that a pull block 24 is disposed on one end of the locking lever 21 away from the center of the planet carrier 2; the locking rod 21 is convenient to pull up when the planet wheel 4 is detached, and operation is convenient for an operator to operate.

In one embodiment of the present application, it is preferable that the connecting shaft 41 is provided with rubber rings 43 on both sides of the planetary wheel 4; on the one hand, carry on spacingly to planet wheel 4, make the fixed position of planet wheel 4, on the other hand also plays the guard action to planet wheel 4, prevents to take place the striking to collide with between planet wheel 4 and the connecting axle 41, prolongs planet wheel 4's life.

In one embodiment of the present application, it is preferable that the outer side of the planet carrier 2 is provided with an outer gear ring, and the planet gear 2 is meshed with the outer gear ring; the reducer is made to output through the external gear ring.

In one embodiment of the present application, it is preferable that the outer ring gear 2 is rotatably mounted in the reducer case 1; the external gear ring 2 is protected, and normal operation of the device is guaranteed.

In one embodiment of the present application, preferably, a bearing 12 is installed in the reducer casing 1, an outer ring of the bearing 12 is fixedly installed in the reducer casing 1, and an inner ring of the bearing 12 is fixedly connected with the outer gear ring; further making the external gear ring run smoothly.

In one embodiment of the present application, it is preferable that the planet wheel 4 is installed on one side of the planet carrier 2, and the other side of the planet carrier 2 is fixedly connected with the reducer casing 1; the planet carrier 2 is fixed, so that the speed reduction mode of the speed reducer is determined, and the normal operation of the speed reducer is further ensured.

In one embodiment of the present application, preferably, a through hole is formed in the center of the planet carrier 2, an input shaft 11 is rotatably mounted on the reducer casing 1, and the input shaft 11 passes through the through hole; the input shaft 11 is provided with a gear which is meshed with the planet gear 4; the planet gear 4 is driven to rotate by the input shaft 11, and the planet gear 4 drives the outer gear ring to rotate under the condition that the planet carrier 2 is fixed, so that the motion transmitted by the input shaft 11 is decelerated.

In one embodiment of the present application, preferably, a sun rack 3 is arranged on one side of the external gear ring away from the input shaft 11, an output shaft 13 is fixedly installed at the center of the sun rack 3, and the output shaft 13 extends out of the reducer casing 1; the output of the outer gear ring is convenient.

In one embodiment of the present application, it is preferable that the output shaft 13 on the reducer case 1 is arranged coaxially with the input shaft 11; rubber rings 43 are arranged among the output shaft 13, the input shaft 11 and the speed reducer shell 1; the input shaft 11 and the output shaft 13 are protected, abrasion is reduced, and the service life is prolonged.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A crane reducer planet carrier is characterized in that: the planet carrier is provided with a plurality of mounting holes which are uniformly distributed along the circumferential direction of the planet carrier; a fixing groove is formed in the mounting hole, is arranged along the radius direction of the planet carrier and is communicated with the mounting hole; a locking rod is slidably arranged in the fixing groove, one end of the locking rod is provided with a locking block and extends into the mounting hole, and the other end of the locking rod extends out of the fixing groove; a pressure spring is sleeved on the locking rod, a boss is arranged on the locking rod, one end of the pressure spring is fixedly connected to the bottom of the fixing groove, and the other end of the pressure spring is abutted to the boss; a planet wheel is arranged in the mounting hole; the planet wheel is provided with a connecting shaft in a sliding way, the connecting shaft is provided with a groove, and a locking block on the locking rod can extend into the groove.

2. The crane retarder planet carrier according to claim 1, wherein: and a pull block is arranged at one end of the locking rod, which is far away from the center of the planet carrier.

3. The crane retarder planet carrier of claim 1, wherein: and rubber rings are arranged on the two sides of the planet wheel on the connecting shaft.

4. The crane retarder planet carrier of claim 1, wherein: the outer side of the planet carrier is provided with an outer gear ring, and the planet wheel is meshed with the outer gear ring.

5. The crane retarder planet carrier of claim 4, wherein: the outer gear ring is rotatably arranged in the reducer shell.

6. The crane retarder planet carrier of claim 5, wherein: the bearing is installed in the speed reducer shell, the outer ring of the bearing is fixedly installed in the speed reducer shell, and the inner ring of the bearing is fixedly connected with the outer gear ring.

7. The crane retarder planet carrier of claim 6, wherein: the planet wheel is installed one side of planet carrier, the opposite side of planet carrier with reduction gear casing fixed connection.

8. The crane retarder planet carrier of claim 7, wherein: a through hole is formed in the center of the planet carrier, an input shaft is rotatably arranged on the speed reducer shell, and the input shaft penetrates through the through hole; the input shaft is provided with a gear, and the gear is meshed with the planet gear.

9. The crane retarder planet carrier of claim 8, wherein: and a sun rack is arranged on one side of the outer gear ring, which is far away from the input shaft, an output shaft is fixedly arranged at the center of the sun rack, and the output shaft extends out of the reducer shell.

10. The crane retarder planet carrier of claim 9, wherein: the output shaft and the input shaft on the speed reducer shell are coaxially arranged; rubber rings are arranged among the output shaft, the input shaft and the speed reducer shell.