CN217838224U

CN217838224U - Rotary type loop chain connecting device with damping function

Info

Publication number: CN217838224U
Application number: CN202221566756.9U
Authority: CN
Inventors: 刘仁杰
Original assignee: Shanghai Daomi Technology Co ltd
Current assignee: Shanghai Daomi Technology Co ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-11-18
Anticipated expiration: 2032-06-22

Abstract

The rotary type loop chain connecting device with the damping function is characterized in that the upper section of a pull rod extends into a cavity in the newspaper jacket, and the outer wall of the upper section of the pull rod is provided with an annular boss; the inner wall of the cavity is provided with a cavity platform which protrudes inwards, and the cavity platform is provided with a plurality of bearings; the upper end face and the lower end face of the buffer cushion block are respectively contacted with the lower end face of the annular boss and the upper end of the bearing. The utility model discloses a set up buffer cushion between bearing and pull rod, absorb the vibration range, improve the equipment vibrations that are produced by the multilateral effect of sprocket, reduce the impact force of equipment greatly, improved the life of equipment.

Description

Rotary type loop chain connecting device with damping function

Technical Field

The utility model belongs to the technical field of hoisting machinery and specifically relates to an utensil shock-absorbing function's rotation link chain connecting device.

Background

The electric chain hoist hoisting equipment drives a speed reducer through a motor, a chain wheel is mounted on an output shaft of the speed reducer, and the chain wheel is driven to rotate to realize ascending and descending of a chain.

However, the chain wheel can generate a polygon effect when rotating, namely, when the chain just enters the driving chain wheel, the chain speed in the horizontal direction changes from small to large and then from large to small once when the chain wheel rotates by one tooth; simultaneously, along with the up-and-down movement in the vertical direction, the chain generates the shaking which is suddenly changed up and down, so that the uneven chain transmission movement is caused, and the equipment generates great vibration. And the faster the rotational speed of sprocket then vibrations are big more, seriously influence the stationarity of equipment operation, can produce great impact force to equipment itself simultaneously, influence the life of equipment.

Disclosure of Invention

The utility model discloses a solve current problem, aim at providing a rotation link chain connecting device of utensil shock-absorbing function.

In order to achieve the purpose, the utility model adopts the technical proposal that the upper end of the newspaper jacket is connected with the endless chain, the lower end of the newspaper jacket is connected with the upper end of the pull rod, the upper section of the pull rod extends into the cavity inside the newspaper jacket, and the outer wall of the upper section of the pull rod is provided with an annular boss; the inner wall of the cavity is provided with a cavity platform which protrudes inwards, and the cavity platform is provided with a plurality of bearings; the upper end face and the lower end face of the buffer cushion block are respectively contacted with the lower end face of the annular boss and the upper end of the bearing.

Wherein, the lower end of the cavity of the newspaper jacket is provided with an opening, and the opening is provided with an annular cavity platform; the upper end face of the cavity platform is a supporting plane, and the supporting plane is in contact with the lower end face of the bearing.

Wherein, the annular boss is arranged on the outer wall of the top end of the pull rod.

Wherein, the upper end of the newspaper clip sleeve is provided with a profiling cavity corresponding to the loop chain, and the lower end of the loop chain extends into the profiling cavity; the profiling cavity is also provided with a horizontal pin hole, and a cylindrical pin fixed with the ring chain is arranged in the pin hole.

The buffer cushion block is in a circular ring shape and wraps the outer wall of the pull rod.

And the outer side of the section of the buffer cushion block is provided with an inward cylindrical notch.

Wherein, the cylindrical surface breach is circular arc.

Wherein, the lower end of the pull rod is provided with a load interface for connecting a heavy object.

Wherein, the newspaper jacket is formed by connecting two half jackets through a fixing bolt.

Compared with the prior art, the utility model discloses a set up buffer cushion between bearing and pull rod, the absorption vibration range improves the equipment vibrations that are produced by the multilateral effect of sprocket, reduces the impact force of equipment greatly, has improved the life of equipment.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a cross-sectional view of an embodiment of the present invention;

referring to the attached drawings, a ring chain 1, a newspaper clamping sleeve 2, a supporting platform 2A, a pin hole 2B, a profiling cavity 2C, a pull rod 3, an annular boss 3A, a load interface 3B, a fixing bolt 4, a cylindrical pin 5, a buffer cushion block 6, an upper end face 6A, a lower end face 6B, a cylindrical surface notch 6C and a rotary bearing 7 are arranged in the newspaper clamping sleeve.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings. Referring to fig. 1 and 2, fig. 1 and 2 show an embodiment of the present invention, which mainly includes a chain, a newspaper jacket, a pull rod, a fixing bolt, a cylindrical pin, a cushion block, and a rotary bearing.

The inside of the newspaper jacket of the embodiment is provided with a cavity, the lower end of the cavity is provided with an opening, and the opening is provided with an annular cavity platform; the upper end of the cavity is sealed. The upper section of the pull rod extends into a cavity inside the newspaper jacket, an annular boss is arranged on the outer wall of the top end of the pull rod, the diameter of the annular boss is larger than that of the pull rod, and the annular boss extends outwards along the radial direction. The cavity platform is provided with a plurality of rotary bearings which can enable the pull rod to rotate relative to the newspaper clamping sleeve. Referring to fig. 2, the shock absorber further comprises a cushion block for absorbing shock, and the cushion block is installed between the pull rod and the slewing bearing, that is, the upper end surface of the cushion block is in contact with the lower end surface of the annular boss, and the lower end surface of the cushion block is in contact with the upper end of the slewing bearing.

The upper end of the newspaper jacket is connected with a ring chain, which is fixed in a profiling cavity inside the newspaper jacket and the profiling cavity is shaped corresponding to the ring chain, as shown in fig. 1 and 2. The lower end of the loop chain extends into the profiling cavity; the profiling cavity is also provided with a horizontal pin hole, and a cylindrical pin in the pin hole horizontally penetrates through the ring chain 1 and fixes the ring chain in the pin hole of the newspaper jacket. Therefore, the ring chain, the newspaper clamping sleeve and the cylindrical pin form a static structure, and the pull rod and the buffer cushion block form a rotary mechanism.

During the use, through profile modeling cavity and cylindric lock with the pull-up force transmission of endless chain to the supporting plane of cavity platform on, the lower terminal surface of buffer pad piece is transmitted to through swivel bearing to the rethread. And the load of the external heavy object is transmitted to the upper end surface of the cushion pad block through the lower end surface of the annular boss of the pull rod, and finally, the upper and lower forces are converged on the cushion pad block. Because the cushion block is made of elastic material with certain shock absorption effect, the equipment shock caused by the multilateral effect of the chain wheel is finally improved, the impact force of the equipment is reduced, and the service life of the equipment is prolonged.

Preferably, the buffer cushion block is circular and surrounds the outer wall of the wrapped pull rod. Furthermore, the outer wall design of cushion block has curved cylinder breach. When the cushion block is extruded by the vertical force, the cushion block can be radially expanded and deformed to be larger, and the sunken cylindrical surface gap can effectively avoid the contact between the outer wall of the cushion block and the cavity surface of the jacket cavity, so that the rotation effect of the connecting device cannot be influenced.

Preferably, referring to fig. 1, the two halves of the newspaper holder sleeve are fixed into a whole by four fixing bolts, and the lower end of the pull rod is a load interface for external heavy objects.

The embodiments of the present invention have been described in conjunction with the accompanying drawings and examples, the structures of which are not intended to limit the present invention, and those skilled in the art can make modifications as required, and all changes and modifications within the scope of the appended claims are within the scope of protection.

Claims

1. The utility model provides a rotation ring chain connecting device of utensil shock-absorbing function, the upper end and the ring chain that newspaper pressed from both sides the cover are connected, and the lower extreme and the pull rod that newspaper pressed from both sides the cover are connected which characterized in that: the upper section of the pull rod extends into the cavity inside the newspaper jacket, and the outer wall of the upper section of the pull rod is provided with an annular boss; the inner wall of the cavity is provided with a cavity platform which protrudes inwards, and the cavity platform is provided with a plurality of bearings;

the upper end face and the lower end face of the buffer cushion block are respectively contacted with the lower end face of the annular boss and the upper end of the bearing.

2. The rotary type link chain connecting device with a shock absorbing function as claimed in claim 1, wherein: the lower end of the cavity of the newspaper jacket is provided with an opening, and the opening is provided with an annular cavity platform; the upper end face of the cavity platform is a supporting plane, and the supporting plane is in contact with the lower end face of the bearing.

3. The rotary type link chain connecting device with a shock absorbing function as claimed in claim 1, wherein: the annular boss is arranged on the outer wall of the top end of the pull rod.

4. The rotary link chain connecting device with a shock absorbing function as claimed in claim 1, wherein: the upper end of the newspaper jacket is provided with a profiling cavity corresponding to the loop chain, and the lower end of the loop chain extends into the profiling cavity; the profiling cavity is also provided with a horizontal pin hole, and a cylindrical pin fixed with the ring chain is arranged in the pin hole.

5. The rotary type link chain connecting device with a shock absorbing function as claimed in claim 1, wherein: the buffer cushion block is annular.

6. The rotary type link chain connecting device with a shock absorbing function as claimed in claim 1 or 5, wherein: and an invaginated cylindrical surface notch is arranged on the outer side of the section of the buffer cushion block.

7. The rotary link chain connecting apparatus with a shock-absorbing function as claimed in claim 6, wherein: the cylindrical surface gap is arc-shaped.

8. The rotary link chain connecting device with a shock absorbing function as claimed in claim 1, wherein: the lower end of the pull rod is provided with a load interface for connecting a heavy object.

9. The rotary type link chain connecting device with a shock absorbing function as claimed in claim 1, wherein: the newspaper jacket is formed by connecting two half jackets through a fixing bolt in an involutory manner.