CN212740527U

CN212740527U - Driving shaft for fixing hand-pulling chain wheel

Info

Publication number: CN212740527U
Application number: CN202021380867.1U
Authority: CN
Inventors: 杨振宇; 何长江
Original assignee: Yichang Lanxiang Machinery Equipment Factory
Current assignee: Yichang Lanxiang Machinery Equipment Factory
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-03-19
Anticipated expiration: 2030-07-14

Abstract

A driving shaft for fixing a hand-pulling chain wheel comprises a reducing rotating shaft and a movable connecting shaft, wherein the reducing rotating shaft and the movable connecting shaft are respectively arranged on a bearing seat; the reducing rotating shaft and the movable connecting shaft are clamped and adjusted to be relatively close to or far away from each other through a telescopic mechanism; the reducing rotating shaft comprises an inner shaft, a right section and a reverse section are respectively arranged on the left section and the right section of the inner shaft, conical heads are connected to the right section and the reverse section through threads, and the two conical heads are matched with conical holes of the upper semi-cylinder and the lower semi-cylinder; the upper semi-cylinder and the lower semi-cylinder are in sliding fit through two sections of limiting heads and limiting ports. The utility model provides a pair of a drive shaft for fixing hand power sprocket can accomplish the hand power sprocket and fix.

Description

Driving shaft for fixing hand-pulling chain wheel

Technical Field

The utility model relates to a drive shaft, especially a drive shaft for fixing hand power sprocket.

Background

The chain wheel is matched with a chain for use, and is used as a main component of a driving hoist for lifting or hoisting. Because the working environment is in a state of needing stress, the traction force detection is needed in the production process. However, the existing traction force detection equipment is not specially used for pulling a chain wheel and a chain. The existing traction device is inconvenient to fix the hand-pulling chain wheel and is inconvenient to install quickly.

Disclosure of Invention

The utility model aims to solve the technical problem that a drive shaft for fixing hand power sprocket is provided, can fix hand power sprocket in the drive shaft fast, make things convenient for the later stage experiment.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a driving shaft for fixing a hand-pulling chain wheel comprises a reducing rotating shaft and a movable connecting shaft, wherein the reducing rotating shaft and the movable connecting shaft are respectively arranged on a bearing seat; the reducing rotating shaft and the movable connecting shaft are clamped and adjusted to be relatively close to or far away from each other through a telescopic mechanism;

the reducing rotating shaft comprises an inner shaft, a right section and a reverse section are respectively arranged on the left section and the right section of the inner shaft, conical heads are connected to the right section and the reverse section through threads, and the two conical heads are matched with conical holes of the upper semi-cylinder and the lower semi-cylinder; the upper semi-cylinder and the lower semi-cylinder are in sliding fit through two sections of limiting heads and limiting ports.

And a limiting ring is arranged in the middle of the inner shaft and matched with the limiting grooves of the upper semi-cylinder and the lower semi-cylinder.

The fixed disks are mounted at the opposite ends of the variable-diameter rotating shaft and the movable connecting shaft, the end faces of the two fixed disks are respectively provided with a ratchet and a ratchet groove, and the ratchet groove are in clamping fit.

The telescopic mechanism comprises a sliding rail in sliding fit with the bearing seat and a second hydraulic cylinder connected with the bearing seat, and the second hydraulic cylinder pushes the bearing seat to move left and right.

The utility model relates to a drive shaft for fixing hand power sprocket has following technological effect:

1) the rotating shaft of the hand-pulling chain wheel is arranged into two sections, the reducing rotating shaft on the left side is fixed, and the movable connecting shaft on the right side is driven to be close to or far away from the reducing rotating shaft through the telescopic mechanism. When the two sections of shafts are close to each other, the two sections of shafts are clamped with the ratchet groove through the ratchets to form a whole, and when the two sections of shafts are separated, the hand-pulling chain wheel can be conveniently and quickly inserted, so that the hand-pulling chain wheel is very convenient.

2) The inner shaft and the outer shaft are matched through the conical head and the conical hole. The outer diameter of the outer shaft can be adjusted, and the outer shaft and the hand-pulling chain wheel are guaranteed to be clamped tightly. And when traction force is experimental, make the motor rotation direction unanimous with the outer axle direction of locking, can be more and more tight like this in the testing process, avoid the pine to take off.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic structural diagram of the utility model after installation.

Fig. 2 is a longitudinal sectional view of the reducing rotating shaft of the present invention.

Fig. 3 is a cross-sectional view of the joint of the upper and lower semi-cylindrical ends of the present invention.

Fig. 4 is a schematic view of the middle and lower half cylinders and the inner shaft of the present invention.

Fig. 5 is a schematic structural diagram of the fixed disk of the present invention.

Fig. 6 is a schematic view of the middle cone head of the present invention.

In the figure: the device comprises an inner shaft 1, a conical head 2, an upper semi-cylinder 3, a lower semi-cylinder 4, a conical hole 5, a limiting head 6, a limiting opening 7, a reducing rotating shaft 8, a movable connecting shaft 9, a bearing seat 10, a telescopic mechanism 11, a limiting ring 12, a fixed disc 13, a hand-pulling chain wheel 14, a sliding rail 11-1 and a second hydraulic cylinder 11-2.

Detailed Description

As shown in fig. 1, a driving shaft for fixing a hand-pulled sprocket comprises a reducing rotating shaft 8 and a movable connecting shaft 9, wherein the reducing rotating shaft 8 and the movable connecting shaft 9 are respectively installed on a bearing seat 10 through bearings; the reducing rotating shaft 8 and the movable connecting shaft 9 are clamped and adjusted to be relatively close to or far away from each other through a telescopic mechanism 11.

As shown in fig. 2, the variable diameter rotating shaft 8 includes an inner shaft 1 and an outer shaft, wherein a right-handed thread section and a reverse-handed thread section are respectively provided on a left section and a right section of the inner shaft 1, and the rotation directions of the right-handed thread section and the reverse-handed thread section are opposite. The regular thread section and the reverse thread section are connected with conical heads 2 in a threaded manner, and the large ends of the conical heads 2 face outwards.

Outer axle includes first semicylinder 3, lower semicylinder 4, and

first semicylinder

3, 4 appearances of lower semicylinder are the semicylinder structure, are equipped with semicircular taper hole 5 about in last semicylinder 3, lower semicylinder 4. The two conical heads 2 are matched with the conical holes 5 of the upper semi-cylinder 3 and the lower semi-cylinder 4. When the inner shaft 1 is rotated, the two conical heads 2 are close to or far away from each other, so that the upper semi-cylinder 3 and the lower semi-cylinder 4 are close to or separated from each other.

As shown in fig. 3, in order to prevent the upper semicylinder 3 and the lower semicylinder 4 from falling, a limiting opening 7 is provided on the right surface of the upper semicylinder 3 at the left and right ends thereof facing the lower semicylinder 4, a T-shaped limiting head 6 is provided at the left and right ends of the lower semicylinder 4, and the limiting head 6 and the limiting opening 7 are slidably engaged with each other. Therefore, the upper semi-cylinder 3 and the lower semi-cylinder 4 can slide relatively without being completely separated, and the loss of parts is avoided.

As shown in fig. 4, in addition, the middle of the inner shaft 1 is provided with a limit ring 12, the corresponding upper semi-cylinder 3 and the corresponding lower semi-cylinder 4 are both provided with semi-cylindrical limit grooves, and the limit ring 12 is clamped with the limit grooves in a matching manner, so that the circumferential movement of the upper semi-cylinder 3 and the lower semi-cylinder 4 can be limited, and the later circumferential adjustment can be reduced.

As shown in fig. 2 and 5, a fixed disk 13 is fixed at the end of the reducing rotating shaft 8, and a ratchet groove is formed on the end surface of the fixed disk 13. A fixed disc 13 is fixed at one end of the movable connecting shaft 9, which is opposite to the reducing rotating shaft 8, the end surface of the fixed disc 13 is provided with a ratchet, and the ratchet is in clamping fit with the ratchet groove.

As shown in fig. 1, the lower end of the bearing seat 10 for mounting the movable connecting shaft 9 is provided with a sliding groove, and the sliding groove is in sliding fit with a sliding rail 11-1 on the bracket. The bearing support 10 is additionally connected to a second hydraulic cylinder 11-2. The second hydraulic cylinder 11-2 pushes the bearing seat 10 to move left and right. Therefore, the movable connecting shaft 9 can be clamped or separated from the reducing rotating shaft 8.

The working principle and the process are as follows:

1) the second hydraulic cylinder 11-2 contracts, and the movable connecting shaft 9 is separated from the reducing rotating shaft 8 to keep an interval; the hand-pulling chain wheel 14 is penetrated on the reducing rotating shaft 8, and a certain gap is kept between the outer wall of the reducing rotating shaft 8 and the central shaft hole of the hand-pulling chain wheel 14. And then the second hydraulic cylinder 11-2 extends out, and the movable connecting shaft 9 and the variable diameter rotating shaft 8 are clamped with the ratchet groove through the ratchet to form a whole.

2) And the upper semi-cylinder 3 or the lower semi-cylinder 4 is held by one hand to limit the circumferential rotation of the upper semi-cylinder 3 or the lower semi-cylinder 4. The drive shaft is then driven by a motor or other drive mechanism. In the rotation process of the inner shaft 1, the two conical heads 2 are close to each other and push out the upper semi-cylinder 3 and the lower semi-cylinder 4, the upper semi-cylinder 3 and the lower semi-cylinder 4 are gradually close to the inner hole of the hand-pulling chain wheel 14 and tightly attached to and locked with the inner hole, and therefore the hand-pulling chain wheel 14 is fixed.

Claims

1. A drive shaft for fixing a hand sprocket, characterized in that: the variable-diameter rotating shaft device comprises a variable-diameter rotating shaft (8) and a movable connecting shaft (9), wherein the variable-diameter rotating shaft (8) and the movable connecting shaft (9) are respectively arranged on a bearing seat (10); the reducing rotating shaft (8) and the movable connecting shaft (9) are clamped and adjusted to be relatively close to or far away from each other through a telescopic mechanism (11); the reducing rotating shaft (8) comprises an inner shaft (1), a right-hand thread section and a reverse-hand thread section are respectively arranged on the left section and the right section of the inner shaft (1), the right-hand thread section and the reverse-hand thread section are in threaded connection with conical heads (2), and the two conical heads (2) are matched with conical holes (5) of the upper half cylinder (3) and the lower half cylinder (4); the upper semi-cylinder (3) and the lower semi-cylinder (4) are in sliding fit through two sections of limiting heads (6) and limiting ports (7).

2. A drive shaft for holding a hand sprocket as defined in claim 1, wherein: the middle of the inner shaft (1) is provided with a limiting ring (12), and the limiting ring (12) is matched with the limiting grooves of the upper semi-cylinder (3) and the lower semi-cylinder (4).

3. A drive shaft for holding a hand sprocket as defined in claim 1, wherein: fixed disks (13) are respectively installed at the opposite ends of the reducing rotating shaft (8) and the movable connecting shaft (9), and ratchets and ratchet grooves are respectively arranged on the end faces of the two fixed disks (13) and are in clamping fit with each other.

4. A drive shaft for holding a hand sprocket as defined in claim 1, wherein: the telescopic mechanism (11) comprises a sliding rail (11-1) in sliding fit with the bearing seat (10) and a second hydraulic cylinder (11-2) connected with the bearing seat (10), and the second hydraulic cylinder (11-2) pushes the bearing seat (10) to move left and right.