CN212804091U

CN212804091U - Speed reducer

Info

Publication number: CN212804091U
Application number: CN202021805147.5U
Authority: CN
Inventors: 叶权; 章娇凤
Original assignee: Zhangchen Heavy Industry Suzhou Co ltd
Current assignee: Zhangchen Heavy Industry Suzhou Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-03-26
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to a speed reducer, the speed reducer includes the planet carrier, the planetary gear, connect the planet wheel axle between planet carrier and planetary gear, have the mounting hole that is used for the planet wheel axle to insert to establish in it on the planet carrier, the planet wheel axle has the first end towards the input side of speed reducer and the second end towards the output side of speed reducer, the speed reducer still includes the stabilizing mean that is used for making the planet wheel axle stabilize in the mounting hole and prevent it from deviating from in the mounting hole; the stabilizing mechanism stabilizes the planet wheel shaft in the mounting hole of the planet carrier, and the stabilizing mechanism realizes the purpose of preventing the planet wheel shaft from being separated from the mounting hole in a mode of blocking the second end surface of the planet wheel shaft, avoids the operation of aligning the planet wheel shaft and the holes on the planet carrier one by one, also avoids the embarrassment that the bolts cannot be taken out smoothly, and greatly improves the working efficiency of assembling and maintaining the planet wheel shaft and the planet carrier.

Description

Speed reducer

Technical Field

The utility model relates to a speed reducer.

Background

At present, the speed reducer is widely applied to modern machinery, the speed reducer is generally used for low-rotation-speed and high-torque transmission equipment, and the purpose of reducing speed is achieved by meshing a motor, an internal combustion engine or other high-speed running power with a large gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer; in the prior art, the integral planet carrier 101 and the planet wheel shaft 102 of the speed reducer are fixed by radially locking hexagon bolts a1, and a plurality of bolts a1 are generally distributed at intervals in the circumferential direction; although the fixed relationship between the planet carrier 101 and the planet shaft 102 can be ensured, a plurality of holes need to be processed in the circumferential direction of the planet carrier 101 and the planet shaft 102, after the plurality of holes on the planet carrier 101 and the plurality of holes on the planet shaft 102 are processed, the holes on the planet carrier 101 and the planet shaft 102 need to be aligned one by one in the circumferential direction, and then the two are locked by using the bolt a1, the operation of aligning the holes one by one is very troublesome, the efficiency is very low, the planet carrier 101 and the planet shaft 102 often need to be disassembled for maintenance, the planet carrier 101 and the planet shaft 102 are assembled again after each disassembly, the holes on the planet carrier and the planet shaft need to be aligned, the; in addition, in order to ensure the locking stability and avoid the loosening of the bolt a1 caused by long-term vibration, a certain amount of glue is generally added when the bolt a1 is installed, so that the bolt a1 can be firmly connected in the hole, and the bolt a1 is very difficult to take out during disassembly and maintenance; when using the powerful screw-out of bolt a1 of hexagonal spanner, the hexagonal groove of bolt a1 head can wear and tear (bolt a1 twist-off also can appear) to unable reuse hexagonal spanner takes out it, need use tools such as pistol drill to bore bolt a1, this has just consumed man-hour greatly, and when the pistol drill was drilled, still easily fall original downthehole internal thread, lead to the hole to scrap, need drill hole again when installing once more, very big increase maintenance cost.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art not enough, provide a speed reducer.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:

the speed reducer comprises a planet carrier, a planetary gear shaft connected between the planet carrier and the planetary gear, wherein the planet carrier is provided with a mounting hole for the planetary gear shaft to be inserted in, the planetary gear shaft is provided with a first end facing the input side of the speed reducer and a second end facing the output side of the speed reducer, the speed reducer further comprises a stabilizing mechanism for stabilizing the planetary gear shaft in the mounting hole and preventing the planetary gear shaft from being separated from the mounting hole, and the stabilizing mechanism blocks the end surface of the second end of the planetary gear shaft so as to prevent the planetary gear shaft from being separated from the mounting hole.

Preferably, the stabilizing mechanism comprises a blocking body which is connected to the planet carrier and blocked on the end face of the second end of the planet wheel shaft.

Preferably, the blocking body is detachably connected to the planet carrier.

Preferably, the blocking body is located inside the mounting hole.

Preferably, the stabilizing mechanism further comprises an annular clamping groove formed in the inner peripheral wall of the mounting hole.

Preferably, the blocking body is a clamp spring, and the clamp spring is detachably mounted in the annular clamping groove.

Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:

the utility model discloses a stabilizing mean of design in the speed reducer, stabilize the planet wheel axle in the mounting hole of planet carrier, and stabilizing mean carries out the mode that blocks through the second end terminal surface to the planet wheel axle, realize preventing the purpose that the planet wheel axle deviates from the mounting hole, thereby avoided attaching the mode of letting the two fixed through the bolt lock after trompil on planet wheel axle and planet carrier, the operation of having avoided going out the hole one-to-one alignment on planet wheel axle and the planet carrier, also avoid appearing the embarrassment that the bolt can't take out smoothly, thereby the work efficiency when the two assembles and maintains has been improved greatly.

Drawings

Fig. 1 is a schematic view of a main sectional structure of a speed reducer of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic diagram of a background introduction scheme;

wherein: 101. a planet carrier; 102. a planetary wheel shaft; 103. a planetary gear; 104. a bearing; 10. a clamp spring; a1, bolts.

Detailed Description

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

As shown in fig. 1, 2 and 3, the speed reducer comprises a planet carrier 101, a planet gear 103, a planet shaft 102 connected between the planet carrier 101 and the planet gear 103, the planet shaft 102 is in rotary butt joint with the planet gear 103 through a bearing 104, the planet carrier 101 is provided with a mounting hole for the planet shaft 102 to insert, the planet shaft 102 is provided with a first end facing to the input side of the speed reducer and a second end facing to the output side of the speed reducer, the speed reducer further comprises a stabilizing mechanism for stabilizing the planet shaft 102 in the mounting hole and preventing the planet shaft from falling out of the mounting hole, and the stabilizing mechanism blocks the end surface of the second end of the planet shaft 102 to prevent the planet shaft 102 from falling out of the mounting hole.

Specifically, the stabilizing mechanism includes a blocking body that is connected to the carrier 101 and blocks the second end face of the planetary wheel shaft 102. The blocking body is detachably connected to the planet carrier 101.

Further, the blocking body is located inside the mounting hole.

In this example, the stabilizing mechanism further includes an annular groove formed in the inner peripheral wall of the mounting hole. The stopper is jump ring 10, and jump ring 10 detachable installs in ring groove.

Through the ring groove on the internal perisporium of mounting hole, then adopt the mode of jump ring 10 joint at ring groove, let planet shaft 102 stabilize on planet frame 101, during the installation, only need put into the mounting hole with planet shaft 102, go into ring groove with jump ring 10 card again, can accomplish the stability to planet shaft 102, it is very simple in the operation, improve the efficiency of installation and maintenance operation greatly.

To sum up, the utility model discloses a stabilizing mean of design in the speed reducer stabilizes the planet wheel axle in the mounting hole of planet carrier, and stabilizing mean carries out the mode that blocks through the second end terminal surface to the planet wheel axle, realizes preventing the purpose that the planet wheel axle deviates from in the mounting hole to avoided attaching the mode of letting the two fixed through the bolt lock after trompil on planet wheel axle and planet carrier, avoided the operation with the hole alignment one by one on planet wheel axle and the planet carrier, also avoided appearing the embarrassment that the bolt can't take out smoothly, thereby the work efficiency when having improved the two greatly and assembling and maintaining.

The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A speed reducer, the speed reducer including a planet carrier, a planetary gear, and a planet wheel shaft connected between the planet carrier and the planetary gear, the planet carrier having a mounting hole for the planet wheel shaft to be inserted therein, the planet wheel shaft having a first end facing an input side of the speed reducer and a second end facing an output side of the speed reducer, the speed reducer characterized in that: the speed reducer further comprises a stabilizing mechanism used for stabilizing the planetary wheel shaft in the mounting hole and preventing the planetary wheel shaft from falling out of the mounting hole, and the stabilizing mechanism blocks the end face of the second end of the planetary wheel shaft so as to prevent the planetary wheel shaft from falling out of the mounting hole.

2. The speed reducer according to claim 1, wherein: the stabilizing mechanism comprises a blocking body which is connected to the planet carrier and blocks the second end face of the planet wheel shaft.

3. The speed reducer according to claim 2, wherein: the blocking body is detachably connected to the planet carrier.

4. The speed reducer according to claim 2, wherein: the blocking body is positioned inside the mounting hole.

5. The speed reducer according to claim 2, wherein: the stabilizing mechanism further comprises an annular clamping groove formed in the inner peripheral wall of the mounting hole.

6. The speed reducer of claim 5, wherein: the blocking body is a clamp spring, and the clamp spring is detachably arranged in the annular clamping groove.