CN111355339A - An anti-rotation guide structure for an electric cylinder - Google Patents

Abstract

The invention is suitable for the technical field of electric cylinder guiding equipment, and provides an anti-rotation guiding structure of an electric cylinder, which comprises a section bar mechanism and a sliding mechanism, wherein the section bar mechanism comprises a sleeve, a circular sliding hole is formed in the middle of the sleeve, four guiding grooves are formed in the inner wall of the sliding hole, the sliding mechanism comprises a sliding block and a guiding block, the sliding block is positioned on the inner side of the sliding block, the guiding block is provided with four guiding grooves which respectively correspond to the four guiding grooves, through the arrangement of the sliding block connected with the electric cylinder, the outer wall of the sliding block is provided with four guiding blocks integrally formed with the sliding block, the outer side of the sliding block is sleeved with the sleeve for the sliding of the sliding block, the inner wall of the sleeve is provided with four guiding grooves for accommodating the four guiding blocks, the guiding blocks are embedded into the guiding grooves and are in sliding connection with the guiding grooves, and four guide blocks and four guide ways you can make the slider slip more stable, use safelyr.

Description

An anti-rotation guide structure for an electric cylinder

technical field

The invention belongs to the technical field of electric cylinder guiding equipment, and in particular relates to an anti-rotation guiding structure of an electric cylinder.

Background technique

The electric cylinder is an electric drive device that converts the rotary motion of the motor into the linear reciprocating motion of the push rod. Common types of linear transmission mechanisms include trapezoidal screw, ball screw, roller screw and sliding guide, and the present invention relates to the ball screw type. The linear transmission mechanism is mainly composed of a slider, a ball screw and a profile. The slider is mounted on the nut of the ball screw and installed inside the profile. The slider is connected to the push rod of the electric cylinder, and the nut of the ball screw is affected by external force. Under the action, the slider is driven to slide up and down, thereby driving the push rod of the electric cylinder to expand and contract.

In the existing slider structure, two nylon blocks are generally installed on the side of the slider as guide blocks, and two guide grooves are opened at the corresponding positions of the profiles. The nylon blocks move up and down in the guide grooves to guide the movement of the slider. The non-metallic guide block can only be used in the case of low lead screw and small thrust. In the case of large lead screw and large thrust, the non-metallic guide block is easy to wear. During the lifting and lowering process of the slider, the slider will rotate. , this design cannot effectively prevent rotation.

SUMMARY OF THE INVENTION

The present invention provides an anti-rotation guide structure for an electric cylinder, aiming at solving the problem that the non-metal guide block is easily worn under the condition of a large lead screw and a large thrust.

The present invention is realized in this way, an anti-rotation guide structure of an electric cylinder includes a profile mechanism and a sliding mechanism;

The profile mechanism includes a sleeve, the middle of the sleeve is provided with a circular sliding hole, and the inner wall of the sliding hole is provided with four guide grooves;

The sliding mechanism includes a sliding block and a guiding block, the sliding block is located inside the sliding hole, the guiding block is provided with four and corresponding to the four guiding grooves respectively, and the guiding block is fixed on the sliding hole. On the outer wall of the block, the guide block and the slider are integrally formed with metal materials, and the guide block is slidably connected to the guide groove.

Preferably, the sliding block has a cylindrical structure, the diameter of the sliding block is smaller than the diameter of the sliding hole, and the sliding block and the sliding hole are coaxially arranged.

Preferably, the four guide grooves and the four guide blocks are distributed evenly in an annular shape around the axis of the slider and the sliding hole.

Preferably, an inner hole is opened in the middle of the slider, and the inner hole is a circular hole structure.

Preferably, the slider is provided with six mounting holes, the six mounting holes are divided into two groups of mounting holes, and the two groups of mounting holes are symmetrically arranged on both sides of the inner hole.

Preferably, a guide tape is adhered on the outer surface of the guide block.

Preferably, the guide block has two side surfaces connecting the slider and a connecting surface connecting the two side surfaces, and a clearance groove with an arc-shaped groove structure is opened on the connecting surface.

Preferably, the sleeve is a rectangular tube, and two first grooves and two second grooves are respectively opened on the two outer walls of the sleeve.

Preferably, both the slider and the guide block are made of aluminum alloy.

Compared with the prior art, the beneficial effect of the present invention is: the anti-rotation guide structure of the electric cylinder of the present invention is provided with a sliding block connected to the electric cylinder, and the outer wall of the sliding block is provided with a four-piece integrally formed with the sliding block. The outer side of the slider is sleeved with a sleeve for the slider to slide, and the inner wall of the sleeve has four guide grooves for accommodating the four guide blocks. The guide blocks are embedded in the guide grooves and slidably connected to the guide grooves. , so that the guide block and the slider form a whole, with better stability, and with four guide blocks and four guide grooves, you can make the slider slide more stably and use it more safely.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of an anti-rotation guide structure of an electric cylinder according to the present invention.

FIG. 2 is a schematic structural diagram of the sleeve of the present invention.

FIG. 3 is a schematic structural diagram of the slider of the present invention.

Figure 4 is a schematic diagram of the use of the present invention.

In the figure: 1-Profile mechanism, 11-Sleeve, 12-Sliding hole, 13-Guide groove, 14-Installation hole, 15-First groove, 16-Second groove, 2-Sliding mechanism, 21-Sliding block, 22-guide block, 23-inner hole, 24-clearance groove, 25-installation hole, 3-electric cylinder.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

Please refer to FIGS. 1-4 , the present invention provides a technical solution: an anti-rotation guide structure for an electric cylinder, including a profile mechanism 1 and a sliding mechanism 2 .

The profile mechanism 1 includes a sleeve 11 , a circular sliding hole 12 is formed in the middle of the sleeve 11 , and four guide grooves 13 are formed on the inner wall of the sliding hole 12 . The sleeve 11 is a rectangular cylinder, and two first grooves 15 and two second grooves 16 are respectively opened on the two outer walls of the sleeve 11 .

The sliding mechanism 2 includes a sliding block 21 and a guide block 22 , the sliding block 21 is located inside the sliding hole 12 , the guide block 22 is provided with four guide grooves 13 corresponding to four, and the guide block 22 is fixed on the outer wall of the sliding block 21 and The guide block 22 and the slider 21 are integrally formed with aluminum alloy. The aluminum alloy has low density, but high strength, close to or surpassing high-quality steel, good plasticity, can be processed into various profiles, and has excellent electrical conductivity, thermal conductivity and corrosion resistance. sex. In other embodiments, the sliding block 21 and the guide block 22 can also be made of metal such as steel, copper, etc. to increase their structural strength and service life, and the guide block 22 is slidably connected to the guide groove 13 . The sliding block 21 has a cylindrical structure and the diameter of the sliding block 21 is smaller than that of the sliding hole 12 , and the sliding block 21 and the sliding hole 12 are coaxially arranged. An inner hole 23 is opened in the middle of the slider 21, and the inner hole 23 is a circular hole structure. The slider 21 is provided with six mounting holes 25 . The six mounting holes 25 are divided into two groups of mounting holes, and the two groups of mounting holes are symmetrically arranged on both sides of the inner hole 23 . The outer surface of the guide block 22 is bonded with a guide strip, which plays a guiding role and has the characteristics of extremely wear resistance, low friction, heat resistance, chemical corrosion resistance, vibration absorption performance and good dry running characteristics. The guide block 22 has two side surfaces connecting the sliding block 21 and a connecting surface connecting the two side surfaces, and a clearance groove 24 with an arc groove structure is opened on the connecting surface.

The sleeve 11 is also made of aluminum alloy, the mounting hole 14 is used to fix the sleeve 11 on the external device, and both the first groove 15 and the second groove 16 are used to reduce the quality of the sleeve 11 while reducing the quality of the sleeve 11 . , to increase or ensure the structural strength and anti-twist performance of the sleeve 11 itself, the sliding hole 12 is used to accommodate the slider 21, and the slider 21 installs the output end of the electric cylinder 3 through the installation hole 25. The output end of the ele Synchronous sliding is performed in the guide groove 16. Because the guide block 22 and the slider 21 are made of aluminum alloy and four are provided at the same time, the stability of the guide block 22 and the slider 21 is strong, and the distance between the guide block 22 and the guide groove 16 is strong. At the same time, the guide belt can prevent the guide block 22 from directly contacting the sleeve 11, and the arc-shaped gap groove 24 can reduce the contact area between the guide block 22 and the inner wall of the guide groove 13, effectively reducing the guide block 22. wear, longer life.

In the anti-rotation guide structure of the electric cylinder of the present invention, the user connects the slider 21 to the electric cylinder 3, inserts the slider 21 into the sliding hole 12 of the sleeve 11, and the guide block 22 cooperates with the guide groove 13 to guide The block 22 contacts the inner wall of the guide groove 13 through the guide belt. When the output end of the electric cylinder 3 is telescopic, the slider 21 slides in the sliding hole 12 and the guide block 22 slides synchronously in the guide groove 16 . After the guide block 22 and the slider 21 are integrated as a whole, the strength is increased, and the guiding force can be significantly enhanced. The guide block 22 made of metal has a longer life and enhanced anti-rotation ability. At the same time, the guide belt can prevent the guide block 22 from directly contacting the sleeve. 11. The gap groove 24 of the arc structure can reduce the contact area between the guide block 22 and the inner wall of the guide groove 13, and effectively reduce the wear of the guide block 22 during operation.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (9)

1. The utility model provides an electronic jar prevent changeing guide structure which characterized in that: comprises a section bar mechanism (1) and a sliding mechanism (2);

the profile mechanism (1) comprises a sleeve (11), a circular sliding hole (12) is formed in the middle of the sleeve (11), and four guide grooves (13) are formed in the inner wall of the sliding hole (12);

slide mechanism (2) include slider (21) and guide block (22), slider (21) are located the inboard of slide opening (12), guide block (22) are provided with four and correspond four respectively guide way (13), guide block (22) are fixed on the outer wall of slider (21) and guide block (22) with slider (21) adopt metal material integrated into one piece, guide block (22) sliding connection guide way (13).

2. An anti-rotation guide structure of an electric cylinder according to claim 1, characterized in that: the sliding block (21) is of a cylindrical structure, the diameter of the sliding block (21) is smaller than that of the sliding hole (12), and the sliding block (21) and the sliding hole (12) are coaxially arranged.

3. An anti-rotation guide structure of an electric cylinder according to claim 1, characterized in that: the four guide grooves (13) and the four guide blocks (22) are uniformly distributed around the axes of the sliding block (21) and the sliding hole (12) at intervals in an annular shape.

4. An anti-rotation guide structure of an electric cylinder according to claim 1, characterized in that: an inner hole (23) is formed in the middle of the sliding block (21), and the inner hole (23) is of a circular hole structure.

5. An anti-rotation guide structure of an electric cylinder according to claim 4, characterized in that: six mounting holes (25) have been seted up on slider (21), six mounting holes (25) are equallyd divide into two sets of mounting hole groups, and are two sets of mounting hole group symmetry sets up the both sides of hole (23).

6. An anti-rotation guide structure of an electric cylinder according to claim 1, characterized in that: and a guide belt is adhered to the outer surface of the guide block (22).

7. An anti-rotation guide structure of an electric cylinder according to claim 1, characterized in that: the guide block (22) is provided with two side surfaces connected with the sliding block (21) and a connecting surface connected with the two side surfaces, and the connecting surface is provided with a clearance groove (24) with an arc groove structure.

8. An anti-rotation guide structure of an electric cylinder according to claim 1, characterized in that: the sleeve (11) is a rectangular cylinder, and two first grooves (15) and two second grooves (16) are respectively formed in two outer walls of the sleeve (11).

9. An anti-rotation guide structure of an electric cylinder according to claim 1, characterized in that: the sliding block (21) and the guide block (22) are made of aluminum alloy.

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