CN210790028U

CN210790028U - Fixture for boring planetary shaft hole of left planetary carrier

Info

Publication number: CN210790028U
Application number: CN201921269393.0U
Authority: CN
Inventors: 李顺强
Original assignee: Chongqing Kezhao Machinery Co ltd
Current assignee: Chongqing Kezhao Machinery Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-06-19
Anticipated expiration: 2029-08-07

Abstract

The utility model relates to a technical field that auto-parts made specifically discloses a left planet carrier boring planet shaft hole anchor clamps, including bolt mechanism, bolt mechanism is including the horizontal pin axle that can insert the oilhole of left planet carrier, the moving direction of horizontal pin axle and the axial vertical in planet shaft hole. The utility model discloses the not high problem of planet carrier positioning accuracy is being solved to the intention.

Description

Fixture for boring planetary shaft hole of left planetary carrier

Technical Field

The utility model relates to a technical field that auto-parts made specifically discloses a left side planet carrier boring planet shaft hole anchor clamps.

Background

The planet carrier is an important part in the planetary gear transmission case, the planet wheel shaft, the bearing and other gear shafts are all arranged on the planet carrier, and the material, quality, structure and the like of the planet carrier directly influence the stress condition, noise and vibration of the whole planetary gear transmission mechanism, so the requirement on the precision of various parameters of the planet carrier in the industry is very high, the manufacturing process is very complicated, and the processing precision is also very high.

The planet carrier is provided with a plurality of shaft holes and oil holes, and the shaft holes are basically formed by casting, so that the roughness of the inner surface of the shaft hole is higher, subsequent finish machining is required, and boring is the most common finish machining method; the oil hole is drilled and is generally perpendicular to the shaft hole. Before boring processing, a clamp is needed to clamp the planet carrier, the planet carrier is fixed and accurately positioned, and then a boring cutter is used for processing a planet shaft hole. Before boring, the outer circle of the planet carrier is finely ground, so that the planet carrier can be positioned and limited in the front, back, left and right directions horizontally by sleeving the planet carrier with the positioning sleeve, but the planet carrier is also required to be limited to rotate, shaft holes in the planet carrier are blank surfaces, and the positioning precision is not high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a left side planet carrier boring planet shaft hole anchor clamps to solve the not high problem of planet carrier positioning accuracy.

In order to achieve the above purpose, the utility model discloses a scheme does:

the clamp for boring the planet shaft hole of the left planet carrier comprises a bolt mechanism, wherein the bolt mechanism comprises a horizontal pin shaft which can be inserted into an oil hole of the left planet carrier, and the moving direction of the horizontal pin shaft is vertical to the axial direction of the planet shaft hole.

The working principle and the beneficial effects of the scheme are as follows:

in this scheme, insert the oilhole with horizontal bolt, fix a position the planet carrier, positioning accuracy is high, positioning method is simple. The planet carrier is provided with a plurality of holes, including a planet shaft hole, a sun shaft hole, an oil hole, a screw hole and the like; the shaft hole is used for installing gear shafts of the planet gear and the sun gear, the requirement on the precision of the shaft hole is quite high, but the error is large when the shaft hole is used for positioning. The oil holes are used for oil passing, the importance degree is far lower than that of the shaft holes, and even part of the planet carrier is not provided with the oil holes; the diameter of the oil hole is small, the oil hole is formed by drilling and is not formed by casting, so that the accuracy of the drilled oil hole is better originally, the oil hole is used for positioning, the positioning accuracy is high, the positioning method is also very simple, the machining efficiency is ensured, and the quality risk is reduced.

Optionally, the latch mechanism further includes a latch base, and the horizontal pin shaft is horizontally slidably disposed on the latch base. This scheme of adoption, horizontal pin axle setting be convenient for operating personnel on the bolt seat and remove horizontal bolt.

Optionally, the pin base is provided with a bottom surface insert, the upper end of the bottom surface insert is detachably provided with a cover plate, and a sliding hole for the horizontal pin shaft to slide is formed between the bottom surface insert and the cover plate. By adopting the scheme, the sliding hole formed between the bottom surface insert and the cover plate can play a limiting role on the horizontal pin shaft, so that the situation that the horizontal pin shaft deflects and rocks is avoided, and the moving precision of the horizontal pin shaft is improved.

Optionally, a handle is arranged at the end of the horizontal pin shaft. This scheme of adoption, the horizontal pin axle of the manual removal of operating personnel of being convenient for.

Optionally, still include bottom plate and reference column, bolt mechanism with the reference column all sets up on the bottom plate, the reference column cavity is equipped with the hold-down mechanism that can compress tightly left planet frame in the reference column. This scheme of adoption, during the use, accomplish location for the first time in inserting the reference column with the sun cylinder body on the planet carrier, then rotate the planet carrier again, make horizontal pin axle and oilhole align, insert the oilhole with horizontal pin axle again, accomplish location for the second time, use hold-down mechanism to compress tightly the planet carrier at last and can accomplish location and clamping.

Optionally, the pressing mechanism comprises a lower nut, a screw rod, an upper nut and a gasket, the lower nut is arranged on the inner bottom wall of the positioning column, the screw rod is in threaded connection with the lower nut, the upper nut is in threaded connection with the screw rod, the gasket capable of moving up and down is arranged in the screw rod in a penetrating mode, and the gasket is located between the upper nut and the lower nut. After the sun cylinder on the planet carrier is inserted into the positioning column, the screw rod and the lower nut are located in the shaft hole of the sun cylinder, the washer and the upper nut are sequentially installed on the screw rod, the upper nut is screwed up, the washer can be tightly pressed on the planet carrier, and positioning and clamping are completed.

Optionally, an opening is provided on the gasket. The split washer can prevent loosening.

Drawings

FIG. 1 is a schematic structural view of a left carrier;

FIG. 2 is a schematic structural diagram according to a first embodiment;

FIG. 3 is a schematic structural diagram according to a second embodiment;

fig. 4 is a longitudinal partial sectional view of the plug housing of fig. 3.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the planet carrier comprises a planet carrier body 1, an upper layer 101, a lower layer 102, a connecting column body 2, a sun column body 3, a sun column hole 4, a planet column hole 5, an oil hole 6, a bottom plate 7, a positioning column 8, a lower nut 9, a screw rod 10, a gasket 11, an upper nut 12, a bolt seat 13, a bottom surface insert 14, a cover plate 15, a horizontal pin shaft 16, a handle 17, a support rod 18, a locking shaft 19, a first clamping groove 20, a second clamping groove 21, a third clamping groove 22, a spring 23 and a clamping block 24.

The structure of the left planet carrier to be processed is basically as shown in figure 1:

the left planet carrier comprises a planet carrier body 1, and the planet carrier body 1 comprises an upper layer 101 and a lower layer 102 which are both cylindrical. A connecting column body 2 is integrally formed between the upper layer 101 and the lower layer 102, a solar column body 3 is integrally formed at the center of the lower layer 102, the solar column body 3 is cylindrical, a solar shaft hole 4 is formed at the center of the solar column body 3, and the solar shaft hole 4 penetrates through the solar column body 3, the lower layer 102 and the upper layer 101. The planet carrier body 1 is also provided with a plurality of planet shaft holes 5, and the planet shaft holes 5 penetrate through the upper layer 101 and the lower layer 102.

Example one

This embodiment is substantially as shown in fig. 2:

a clamp for boring a planet shaft hole 5 of a left planet carrier comprises a bottom plate 7, a bolt mechanism, a pressing mechanism and a positioning column 8.

The positioning column 8 is fixedly arranged at the center of the bottom plate 7, and the positioning column 8 is hollow. The pressing mechanism comprises a lower nut 9, a screw 10, a washer 11 and an upper nut 12. The lower nut 9 is fixedly arranged on the inner bottom wall of the positioning column 8, the screw 10 is in threaded connection with the lower nut 9, the gasket 11 is arranged in the screw 10 in a penetrating mode, the gasket 11 is only in contact with the screw 10 and is not connected with the screw, and the upper nut 12 is in threaded connection with the screw 10, wherein the gasket 11 is provided with an opening.

The latch mechanism comprises a latch seat 13, a bottom surface insert 14, a cover plate 15 and a horizontal pin shaft 16. Bolt seat 13 can be dismantled and connect on bottom plate 7, can dismantle the mode of connection: the bolt seat 13 is fixed on the bottom plate 7 through screws, and the bolt seat 13 can be detached by detaching the screws. The bottom surface insert 14 is embedded in the upper end surface of the pin seat 13, and the cover plate 15 is also detachably arranged on the upper end surface of the bottom surface insert 14 in a screw mode. The upper end face of the bottom surface insert 14 and the lower end face of the cover plate 15 both horizontally penetrate through a semi-cylindrical through hole, the two through holes form a complete cylindrical sliding hole, a horizontal pin shaft 16 is arranged in the sliding hole in a sliding mode, and a handle 17 is fixedly arranged at one end, far away from the positioning column 8, of the horizontal pin shaft 16. The sliding direction of the horizontal bolt being in contact with the planet axle holes 5 and the sun axle hole 3

The specific implementation process is as follows:

firstly, inserting the sun post body 2 on the planet carrier into the positioning column 8 to complete first positioning, then rotating the planet carrier to align the oil hole 6 and the horizontal pin shaft 16, and then manually pushing the horizontal pin shaft 16 to insert into the oil hole 6 to complete second positioning. At this time, the sun shaft hole 3 of the sun post 2 is inserted through the screw rod 10, and then the washer 11 and the upper nut 12 are sequentially mounted on the screw rod 10, and the upper nut 12 is tightened.

Example two

With reference to fig. 3 and 4, the difference from the first embodiment is that: the vertical fixed branch 18 that is equipped with of right-hand member portion of handle 17, the left side bottom level of branch 18 is rotated and is equipped with locking axle 19, and the left end portion of locking axle 19 is the sphere, and first draw-in groove 20 has vertically been seted up to the left part upper end of locking axle 19, and the left and right sides wall of first draw-in groove 20 is the inclined plane. The bolt seat 13 is provided with a second clamping groove 21 for inserting the locking shaft 19, the left inner upper wall of the second clamping groove 21 is vertically provided with a third clamping groove 22, the inner upper wall of the third clamping groove 22 is fixedly provided with a spring 23, the lower end of the spring 23 is fixedly provided with a clamping block 24, and the left side wall and the right side wall of the clamping block 24 are inclined planes parallel to the left side wall and the right side wall of the first clamping groove 20.

During the use, operating personnel pushes handle 17 manually, and handle 17 drives horizontal round pin axle 16 and inserts in the oilhole 6, and handle 17 also drives locking axle 19 simultaneously and inserts in second draw-in groove 21, and locking axle 19 promotes earlier that fixture block 24 removes to third draw-in groove 22, and until fixture block 24 and second draw-in groove 21 align, fixture block 24 then pops out in second draw-in groove 21. When the planet carrier is machined, if the horizontal pin shaft 16 vibrates, the horizontal pin shaft 16 cannot exit from the oil hole 6 under the limiting action of the clamping block 24 and the second clamping groove 21, and the positioning action of the horizontal pin shaft 16 is ensured.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be pointed out that to those skilled in the art, without departing from the structure of the present invention, a plurality of modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the utility of the present invention.

Claims

1. Left planet carrier boring planet shaft hole anchor clamps, its characterized in that: the novel planet carrier pin mechanism comprises a horizontal pin shaft which can be inserted into an oil hole of a left planet carrier, and the moving direction of the horizontal pin shaft is vertical to the axial direction of a planet shaft hole.

2. The left planet carrier boring planet axle hole clamp of claim 1, wherein: the bolt mechanism further comprises a bolt seat, and the horizontal pin shaft is horizontally arranged on the bolt seat in a sliding mode.

3. The left planet carrier boring planet axle hole clamp of claim 2, wherein: the pin base is provided with a bottom surface insert, the upper end of the bottom surface insert is detachably provided with a cover plate, and a sliding hole for the horizontal pin shaft to slide is formed between the bottom surface insert and the cover plate.

4. The left planet carrier boring planet axle hole clamp of claim 3, wherein: and a handle is arranged at the end part of the horizontal pin shaft.

5. The left planet carrier bored planet shaft bore clamp of any one of claims 1-4, wherein: still include bottom plate and reference column, bolt mechanism with the reference column all sets up on the bottom plate, the reference column cavity is equipped with the hold-down mechanism that can compress tightly left planet frame in the reference column.

6. The left planet carrier boring planet axle hole clamp of claim 5, wherein: the pressing mechanism comprises a lower nut, a screw rod, an upper nut and a gasket, the lower nut is arranged on the inner bottom wall of the positioning column, the screw rod is in threaded connection with the lower nut, the upper nut is in threaded connection with the screw rod, the gasket capable of moving up and down is arranged in the screw rod in a penetrating mode, and the gasket is located between the upper nut and the lower nut.

7. The left planet carrier boring planet axle hole clamp of claim 6, wherein: the gasket is provided with an opening.