CN210505413U

CN210505413U - Connecting shaft structure of lifting platform

Info

Publication number: CN210505413U
Application number: CN201921455798.3U
Authority: CN
Inventors: 刘霞; 魏法涛; 刘宝生
Original assignee: Jiyang Eastern Hydraulic Machinery Co ltd
Current assignee: Jiyang Eastern Hydraulic Machinery Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-05-12
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a lift platform connecting axle structure mainly relates to lift platform technical field, including connecting axle, protection unit and dismouting unit, the connecting axle includes axle head and connection axis body, and the axle head setting is in the one end of connecting the axis body, and the protection unit setting is outside connecting the axis body, and the dismouting unit setting is on the protection unit. The utility model adds the shaft sleeve outside the connecting shaft, and adds the wear-resistant layer on the shaft sleeve and between the connecting shaft, so that the connecting shaft and the two supporting arms are not in direct contact, thereby effectively reducing the abrasion and prolonging the service life of the connecting shaft; set up the shaft shoulder on the axle sleeve, set up a plurality of screws on the shaft shoulder, cooperation bolt, when needing to overhaul or change and dismantle the axle sleeve, twist through screw-thread fit and move the bolt and withstand the support arm and just can easily dismantle the axle sleeve.

Description

Connecting shaft structure of lifting platform

Technical Field

The utility model relates to a lift platform, especially a lift platform connecting axle structure.

Background

The lifting platform has various structures, the most common supporting arm of the lifting platform is a scissor-type structure, the structure is that two supporting arms which are in a cross shape are connected through a connecting shaft in a penetrating manner, the connecting shaft is positioned at the joint of the two supporting arms and is easily damaged by shearing force and abrasion, the service condition of the connecting shaft directly influences the service effect and the service life of the whole lifting platform, and the connecting shaft which is abrasion-resistant, long in service life and easy to disassemble needs to be designed at the moment.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple structure's lift platform connecting axle structure has solved the connecting axle that exists among the prior art and has not stand wear and tear, short-lived and the difficult problem of dismantling.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: including connecting axle, protection unit and dismouting unit, the connecting axle includes the axle head and connects the axis body, and the axle head setting is in the one end of connecting the axis body, and the protection unit setting is outside connecting the axis body, and the dismouting unit setting is on the protection unit.

Preferably, the protection unit includes axle sleeve and shaft shoulder, and the shaft shoulder setting is in the one end of axle sleeve, and the axle sleeve suit is outside at the connection axis body, and the edge that is close to the shaft shoulder is provided with a plurality of screw through-holes along the circumference interval.

Preferably, the disassembling and assembling unit comprises a plurality of bolts, and the plurality of bolts are all arranged in the plurality of threaded through holes.

Preferably, a wear-resistant layer is arranged inside the shaft sleeve, and dense pits are uniformly distributed on the inner surface of the wear-resistant layer.

Preferably, the number of the plurality of threaded through holes is equal to the number of the plurality of bolts, and the number of the threaded through holes is 4.

The utility model adopts the above structure, following advantage has: the shaft sleeve is additionally arranged outside the connecting shaft, and the wear-resistant layer is additionally arranged between the shaft sleeve and the connecting shaft, so that the connecting shaft is not directly contacted with the two supporting arms, the wear is effectively reduced, and the service life of the connecting shaft is prolonged; set up the shaft shoulder on the axle sleeve, set up a plurality of screws on the shaft shoulder, cooperation bolt, when needing to overhaul or change and dismantle the axle sleeve, twist through screw-thread fit and move the bolt and withstand the support arm and just can easily dismantle the axle sleeve.

Drawings

FIG. 1 is a schematic sectional view of the usage state of the present invention;

fig. 2 is a schematic view of the sectional structure of the detachable state of the present invention.

In the figure, 1, the shaft end; 2. a shaft sleeve; 3. a wear layer; 4. a first supporting arm; 5. a second supporting arm; 6. a connecting shaft body; 7. a shaft shoulder; 8. and (4) bolts.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

During the use, as shown in fig. 1, the connecting axle is used for connecting support arm one 4 and support arm two 5, the connecting axle includes axle head 1 and connection axis body 6, axle head 1 sets up the one end at connection axis body 6, the protection unit sets up in connection axis body 6 outsidely, the dismouting unit sets up on the protection unit, the protection unit includes axle sleeve 2 and shaft shoulder 7, shaft shoulder 7 sets up the one end at

axle sleeve

2, 2 suits of axle sleeve are outside at

connection axis body

6, 2 inside one deck wearing layer 3 that are provided with of axle sleeve, the internal surface equipartition of wearing layer 3 has intensive pit, the nearly edge department of shaft shoulder 7 is provided with a plurality of screw through-holes along the circumference interval, the dismouting unit includes a plurality of bolts 8, a plurality of bolts 8 all set up in a plurality of screw through-holes, the quantity of a plurality of screw through-holes and the quantity correspondence of a plurality.

Before connection, two threaded blind holes at opposite angles are processed on the contact surface of the second support arm 5 and the shaft shoulder 7 at positions corresponding to the plurality of threaded through holes, lubricating oil or lubricating grease is coated on the wear-resistant layer 3 of the shaft sleeve 2, small pits on the inner surface of the wear-resistant layer 3 can play a role in locking the oil, when the connecting shaft is in work, as shown in figure 1, the shaft sleeve 2 is sleeved on the connecting shaft body 6, then the connecting shaft body 6 and the shaft sleeve 2 jointly penetrate through the first support arm 4 and the second support arm 5, the two threaded through holes in the shaft shoulder 7 and the threaded blind holes in the second support arm 5 are aligned and screwed into the two bolts 8 for fixed connection, the remaining two bolts 8 are screwed into the other two threaded through holes in the shaft shoulder 7, and; when the disassembly is needed for maintenance or replacement, as shown in fig. 2, the two bolts 8 which play a role in fixed connection are unscrewed and taken down, the other two remaining bolts 8 are screwed to prop against the second supporting arm 5, the shaft shoulder 7 is gradually ejected, and the shaft shoulder 7 is directly pulled out after being ejected for a certain distance.

Wherein the wear resistant layer 5 and the bolt 8 are prior art.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides a lift platform connecting axle structure which characterized in that: including connecting axle, protection unit and dismouting unit, the connecting axle include the axle head and connect the axis body, the axle head set up the one end of connecting the axis body, the protection unit setting be in the connection axis body outside, the dismouting unit setting be in the protection unit on.

2. The connecting shaft structure of the lifting platform according to claim 1, wherein: the protection unit include axle sleeve and shaft shoulder, the shaft shoulder set up the one end of axle sleeve, the axle sleeve suit the connection axis body outside, the near edge department of shaft shoulder along the circumference interval be provided with a plurality of screw thread through-holes.

3. The connecting shaft structure of the lifting platform according to claim 2, wherein: the disassembly and assembly unit comprises a plurality of bolts, and the bolts are all arranged in the thread through holes.

4. The connecting shaft structure of the lifting platform according to claim 3, wherein: the wear-resistant sleeve is characterized in that a wear-resistant layer is arranged inside the shaft sleeve, and dense pits are uniformly distributed on the inner surface of the wear-resistant layer.

5. The connecting shaft structure of the lifting platform according to claim 4, wherein: the number of the plurality of threaded through holes is equal to the number of the plurality of bolts correspondingly, and the number of the threaded through holes is 4.