CN213326500U

CN213326500U - Variable-speed cam jacking mechanism

Info

Publication number: CN213326500U
Application number: CN202022235864.5U
Authority: CN
Inventors: 唐惠庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-01
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a variable-speed cam jacking mechanism, which is provided with a bracket, wherein a power component and a jacking component matched with the power component are arranged in the bracket; the power assembly is provided with a jacking push rod, a sliding block and a sliding base; the lower surface of the sliding base is fixed on the bottom plate of the bracket; the sliding block slides on the upper surface of the sliding base; the jacking push rod is fixed on the side wall of the support, and the movable end of the jacking push rod is fixedly connected with the end part of the sliding base; the upper surface of the sliding block is divided into a detention surface and a sliding surface; the sliding surface is of an inner arc structure, and the detention surface is a plane; one end part of the sliding surface is fixed with one end of the detention surface; the jacking assembly moves on the upper surface of the sliding block according to the shape track on the sliding surface; by adopting the scheme, the utility model firstly overcomes the problem that the jacking technical effect is realized under the condition of limited lower space; through the matching of the jacking assembly and the power assembly, the thrust generated by the power mechanism is effectively utilized, and the power efficiency is improved; the structure has low cost and is worth popularizing.

Description

Variable-speed cam jacking mechanism

Technical Field

The utility model belongs to the machining field especially relates to a cam climbing mechanism of variable speed.

Background

The jacking mechanism has wide application in storage and logistics. The existing jacking mechanism is generally arranged under an object to be jacked, and has the following problems in the jacking process: firstly, as the angles of the hydraulic cylinder and the push rod change, the component force in the vertical direction is small, the thrust generated by the power mechanism cannot be effectively utilized, and the efficiency is low;

secondly, if receive space restriction, can't be under the article of needs jacking installation climbing mechanism, will realize the effect of jacking through complicated mechanism, and the cost is higher.

Therefore, aiming at the prior art problems, a jacking mechanism which can adapt to the condition that the bottom space is limited and cannot be installed and the solution efficiency is low is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a variable speed cam climbing mechanism, the above-mentioned problem of solution.

In order to solve the above problem, the utility model provides a technical scheme as follows: a variable-speed cam jacking mechanism is provided with a support 1, wherein a power assembly and a jacking assembly matched with the power assembly are arranged in the support 1;

the power assembly is provided with a jacking push rod 2, a sliding block 3 and a sliding base; the lower surface of the sliding base is fixed on the bottom plate of the bracket 1; the sliding block 3 slides on the upper surface of the sliding base; the jacking push rod 2 is fixed on the side wall of the support 1, and the movable end of the jacking push rod 2 is fixedly connected with the end part of the sliding base;

the upper surface of the slider 3 is divided into a retention surface 31 and a sliding surface 32; the sliding surface 32 is of an inner arc structure, and the detention surface 31 is a plane; one end of the sliding surface 32 is fixed to one end of the retention surface 31; the jacking assembly moves on the upper surface of the sliding block 3 according to the shape track on the sliding surface 32.

In a preferred technical scheme, the arc degree of the sliding surface 32 is 22-35 degrees.

In a preferred technical scheme, a friction pad is paved on the sliding surface 32, and the friction pad is made of rubber.

According to the preferable technical scheme, at least one groove is formed in the friction pad, and the groove is horizontally arranged relative to the friction pad.

According to the preferable technical scheme, the jacking assembly is provided with a moving wheel 4, a lifting column 7, a spring 5 and a sleeve 6; one end of the lifting column 7 is connected with a central hole bearing of the moving wheel 4, and the other end of the lifting column 7 penetrates through the sleeve 6 to extend upwards and is fixedly connected with the bottom of the bearing plate 8; the spring 5 is sleeved on the outer wall of the lifting column 7; the sleeve 6 penetrates through the top plate of the support 1 and is fixed in the top plate.

According to the preferable technical scheme, one end of the lifting column 7 is provided with a limiting ring for blocking the spring 5, and the aperture numerical value of the sleeve 6 is between the diameter of the inner ring of the spring 5 and the diameter of the lifting column 7.

In a preferred technical scheme, the moving wheel 4 is provided with an arc part 41 and a concave part 42; 2 times the arc length of the sliding surface 32 is equal to the circumference of the arc portion 41; the length of the retention surface 31 is equal to the length of the linear portion of the recessed portion 42.

Compared with the prior art, the jacking device has the advantages that by adopting the scheme, the jacking device firstly overcomes the technical effect of jacking under the condition of limited lower space; through the matching of the jacking assembly and the power assembly, the thrust generated by the power mechanism is effectively utilized, and the power efficiency is improved; the structure has low cost and is worth popularizing.

Drawings

For a clearer explanation of the embodiments or technical solutions in the prior art, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the slider structure of the present invention;

fig. 3 is a schematic view of the structure of the movable wheel of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The use of the terms "fixed," "integrally formed," "left," "right," and the like in this specification is for illustrative purposes only, and elements having similar structures are designated by the same reference numerals in the figures.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1 to 3, example 1: example 1: when jacking push rod 2 promoted forward, the tip of jacking push rod 2 promoted and promoted slider 3 on the smooth base, made slider 3's glide plane 32 move forward, and removal wheel 4 on the glide plane 32 moves along with the slope of glide plane 32 to raise removal wheel 4, thereby make lift post 7 realize the effect of jacking.

Example 2: in order to prevent the sliding of the moving wheel 4 while moving on the sliding surface 32, a friction pad is laid on the sliding surface 32 to increase the frictional force;

furthermore, in order to better prevent slipping, a groove is arranged on the friction pad; for example, a groove may be formed in the middle of the friction pad, and one or more grooves may be formed in the vicinity of the sliding surface 32 and the staying surface 31; further, a convex strip may be installed at the groove, so that the outer surface of the convex strip is higher than the outer surface of the sliding surface 32 or the outer surface of the friction pad, further, cracks may be formed on the surface of the boss, and the cracks may have a cross structure.

Embodiment 3, in order to prevent the moving wheel 4 from slipping into the sliding surface 32 on the staying surface 31 and generating bumping phenomenon due to too large gradient, therefore, the structure of the moving wheel 4 should match with the structure of the slide block 3, the moving wheel 4 is provided with an arc part 41 and a concave part 42, 2 times of arc length of the sliding surface 32 is equal to the perimeter of the arc part 41; the length of the retention surface 31 is equal to the length of the linear portion of the recessed portion 42.

By adopting the scheme, the utility model firstly overcomes the problem that the jacking technical effect is realized under the condition of limited lower space; through the matching of the jacking assembly and the power assembly, the thrust generated by the power mechanism is effectively utilized, and the power efficiency is improved; the structure has low cost and is worth popularizing.

It should be noted that the above technical features are continuously combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; moreover, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

Claims

1. A variable-speed cam jacking mechanism is characterized by being provided with a support, wherein a power assembly and a jacking assembly matched with the power assembly are arranged in the support;

the power assembly is provided with a jacking push rod, a sliding block and a sliding base; the lower surface of the sliding base is fixed on the bottom plate of the bracket; the sliding block slides on the upper surface of the sliding base; the jacking push rod is fixed on the side wall of the support, and the movable end of the jacking push rod is fixedly connected with the end part of the sliding base;

the upper surface of the sliding block is divided into a detention surface and a sliding surface; the sliding surface is of an inner arc structure, and the detention surface is a plane; one end part of the sliding surface is fixed with one end of the detention surface; and the jacking assembly moves on the upper surface of the sliding block according to the shape track on the sliding surface.

2. The variable speed cam jack mechanism of claim 1, wherein the sliding surface has an arc degree between 22 and 35 degrees.

3. The variable speed cam jack mechanism of claim 1, wherein a friction pad is laid on the sliding surface, and the friction pad is made of rubber.

4. The variable speed cam jack of claim 3, wherein the friction pad has at least one groove formed therein, the groove being disposed horizontally with respect to the friction pad.

5. The variable speed cam jack mechanism of claim 1, wherein the jack assembly is provided with a moving wheel, a lifting column, a spring and a sleeve; one end of the lifting column is connected with a central hole bearing of the moving wheel, and the other end of the lifting column penetrates through the sleeve to extend upwards and is fixedly connected with the bottom of the bearing plate; the spring is sleeved on the outer wall of the lifting column; the sleeve penetrates through the top plate of the support and is fixed in the top plate.

6. The variable speed cam jack mechanism of claim 5, wherein the lift post has a stop collar at one end thereof for stopping the spring, and the sleeve has an aperture having a value between the diameter of the inner collar of the spring and the diameter of the lift post.

7. The variable speed cam jack mechanism of claim 5, wherein the moving wheel is provided with an arcuate portion and a concave portion; 2 times of arc length of the sliding surface is equal to the perimeter of the arc-shaped part; the length of the stagnation surface is equal to the length of the linear portion of the recessed portion.