CN112485404A

CN112485404A - Manual rapid stepless regulation lifting device and regulation method thereof

Info

Publication number: CN112485404A
Application number: CN202011315206.5A
Authority: CN
Inventors: 王永豪; 郭振华
Original assignee: China Institute of Radio Wave Propagation CETC 22 Research Institute
Current assignee: China Institute of Radio Wave Propagation CETC 22 Research Institute
Priority date: 2020-11-21
Filing date: 2020-11-21
Publication date: 2021-03-12

Abstract

The invention discloses a manual rapid stepless regulation lifting device and a regulation method thereof, the device comprises a tray, four rapid regulation units which are in a square array are arranged on the tray, the structure of each rapid regulation unit is the same, each rapid regulation unit comprises an upright post which penetrates through the tray, a locking screw sleeve which is embedded on the tray and can slide up and down along the upright post is sleeved on the upright post, the bottom of the locking screw sleeve is an elastic conical surface with a cross groove, a thread which extends to the top is arranged at the part of the locking screw sleeve, which is close to the elastic conical surface, a locking nut which can rotate and move up and down along the thread is sleeved on the thread, and the bottom of the inner ring of the locking nut is provided with a conical surface corresponding to the elastic conical surface. The device disclosed by the invention has the advantages of few required parts, simplicity in assembly and low manufacturing cost, can meet the application places with limited space and stepless lifting, does not need to use special tools, and can greatly improve the working efficiency.

Description

Manual rapid stepless regulation lifting device and regulation method thereof

Technical Field

The invention belongs to the field of lifting devices, and particularly relates to a manual rapid stepless adjusting lifting device and an adjusting method thereof, which are used in a rock core element analyzer or other devices with limited space and needing frequent lifting adjustment.

Background

When carrying out rock core elemental analysis in the oil drilling field, rock core elevating gear need place in sealed cavity, and rock core need adjust to scanning hole department during the analysis at every turn, if the elevation structure size is too big, can cause the sealed cavity size to increase, and equipment weight can greatly increased, simultaneously because the rock core diameter is unequal, adjusts at every turn and all needs to make things convenient for the efficient to adjust and target in place.

If the structure form that the lead screw and the nut are matched is adopted, the nut is positioned below the tray to support the tray, and the height of the tray is adjusted through adjusting the nut according to needs. The mode has simple structure, less structural parts and lower cost. The lead screw and the nut can realize the stepless regulation of the height of the tray, but the efficiency is too low by screwing the nut when the height of the tray is regulated, the upper part of the tray is not limited, and the tray is easy to shake upwards in the vibration process, so that the hidden danger is increased.

If a series of positioning holes are drilled on the upright columns, pins or cotter pins are adopted to position the lower part of the tray. This kind of structure can be fast efficient adjusts the tray height. Although the height adjustment of the tray can be quickly realized through a series of positioning holes, the structure has a limited application range, the stepless adjustment of the tray cannot be realized, and the structural form cannot be applied under the condition that the requirement on the lifting height precision of the tray is high. The structure also has no limit above the tray, and has the problem of vertical vibration.

If a screw rod driving type scissors lifting structure is adopted, the structure drives the hinged connecting rod to rotate through the rotation of the screw rod, and the lifting and the descending of the supporting surface are realized. Stepless lift adjustment can be realized to this structure, but the structure size is great, causes sealed chamber and instrument weight to increase, and this structural stability is relatively poor in addition, and support platform can move a small amount of downwards when receiving the pressure of core, causes the test result not accurate enough.

Disclosure of Invention

The invention aims to solve the technical problem of providing a manual rapid stepless adjustment lifting device with simple structure and high adjustment efficiency and an adjustment method thereof.

The invention adopts the following technical scheme:

the improvement of a manual quick stepless regulation lifting device is that: the tray comprises a tray body, four quick adjustment units forming a square array are arranged on the tray body, the structure of each quick adjustment unit is the same, the quick adjustment units all comprise stand columns penetrating through the tray body, the top ends of the stand columns can be fixedly installed on the top of the inner wall of a supporting frame, locking screw sleeves which are embedded on the tray body and can slide up and down along the stand columns are sleeved on the stand columns, the locking screw sleeves are clamped on the tray body by a fixing pressing plate and are fixed, the fixing pressing plate and the tray body are fixed through screws, the bottom of each locking screw sleeve is an elastic conical surface with a cross groove, threads extending to the top are arranged at positions, close to the elastic conical surfaces, of the locking screw sleeves, locking nuts capable of rotating and moving up and down along the threads are sleeved on the threads, and conical surfaces corresponding to the elastic conical surfaces are.

Furthermore, the part of the top of the locking screw sleeve penetrating through the fixed pressing plate is in a shape that two sides of the circular tube are milled into planes.

Furthermore, the elastic conical surface is made of red copper.

Furthermore, the locking nut is made of stainless steel.

Furthermore, the locking nut is a butterfly nut.

Furthermore, a split pin is arranged at the part of the upright post below the locking nut.

An adjusting method is suitable for the manual rapid stepless adjusting lifting device, and the improvement is that: when the height of the tray needs to be adjusted, the locking nuts of the quick adjusting units are rotated to separate the conical surface at the bottom of the locking nut from the elastic conical surface, and the elastic conical surface is separated from the stand column after being reset, so that the height of the tray can be adjusted up and down along the stand column, after the adjustment is finished, the locking nuts of the quick adjusting units are rotated, the elastic conical surface is extruded by the conical surface at the bottom of the locking nut to deform the locking stand column, and the height of the tray is fixed.

The invention has the beneficial effects that:

according to the device disclosed by the invention, mechanical locking is realized by extruding the elastic conical surface to deform by using the conical surface at the bottom of the locking nut, and when the tray needs to be adjusted to any height, the tray can be quickly lifted and fixed by manually rotating the locking nut. The structure has the advantages of few required parts, simple assembly and low manufacturing cost, can meet the application places with limited space and stepless lifting, does not need to use special tools, and can greatly improve the working efficiency.

In order to ensure that the elastic conical surface can be more easily deformed after being extruded, the elastic conical surface adopts a cross groove structure and uses a high-plasticity red copper material, and meanwhile, in order to prevent thread snapping in the locking process, the locking nut adopts a stainless steel material different from the locking threaded sleeve.

The part of the top of the locking threaded sleeve penetrating through the fixed pressing plate is in a shape that two sides of the circular tube are milled into planes, so that the locking threaded sleeve and the fixed pressing plate can be prevented from rotating relatively.

The locknut adopts the butterfly nut to be convenient for the hand to twist, installs the split pin in stand below, and the purpose is in order to prevent to drop behind the unscrewed locknut, prevents to lose.

According to the adjusting method disclosed by the invention, the rapid stepless lifting of the tray can be realized by manually adjusting the locking nut, the tray is not required to be disassembled and assembled by means of a special tool, and the method is convenient and rapid.

Drawings

FIG. 1 is a schematic structural diagram of an apparatus disclosed in embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of a quick adjustment unit in the apparatus disclosed in embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of a locking nut in the device disclosed in embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of a fixed platen in the apparatus disclosed in example 1 of the present invention;

FIG. 5 is a schematic structural view of a lock nut in the device disclosed in embodiment 1 of the present invention;

fig. 6 is a diagram of the state of use of the device disclosed in embodiment 1 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiment 1, as shown in fig. 1 to 6, this embodiment discloses a manual fast stepless adjustment lifting device, which includes a tray 1, four fast adjustment units arranged on the tray in a square array, each fast adjustment unit having the same structure and including an upright post 2 penetrating through the tray, the top end of the upright post being fixedly mountable to the top of the inner wall of a support frame 8, a locking nut 3 (i.e. a clearance fit is adopted between the locking nut and the upright post) being embedded on the tray and capable of sliding up and down along the upright post being sleeved on the upright post, a fixing pressure plate 4 clamping the locking nut on the tray and fixing the locking nut, the fixing pressure plate being fixed to the tray by a screw 6, an elastic conical surface 31 having a cross groove being provided at the bottom of the locking nut, a thread 32 extending to the top being provided at a position of the locking nut near the elastic conical surface, a locking nut 5 being rotatably provided on the thread and capable of moving up and down along the thread, the bottom of the inner ring of the lock nut is provided with a tapered surface 51 corresponding to the elastic tapered surface.

In this embodiment, the top of the locking screw sleeve, which penetrates through the fixed pressing plate, is formed by milling two sides of a circular tube into a flat shape and inserting the flat shape into the hole D in fig. 4. The elastic conical surface is made of red copper. The locking nut is made of stainless steel. As shown in fig. 5, the locking nut is a wing nut, and two ears on two sides of the locking nut can be welded to save processing cost. A cotter pin 7 is mounted at the part of the column below the locknut.

An adjusting method is suitable for the manual quick stepless adjusting lifting device, when the height of a tray needs to be adjusted, the locking nuts of all quick adjusting units are rotated to separate the conical surface at the bottom of each locking nut from the elastic conical surface, the elastic conical surfaces are separated from the stand column after being reset, so that the height of the tray can be adjusted up and down along the stand column, after the adjustment is finished, the locking nuts of all the quick adjusting units are rotated, the elastic conical surfaces are extruded by the conical surfaces at the bottoms of the locking nuts to deform and lock the stand column, so that the height of the tray is fixed, and the core 9 is quickly positioned and adjusted to the scanning hole 10.

In order to use smaller force when the locking nut is screwed down, when the conical surfaces of the locking nut and the elastic conical surface are designed, the conical surface of the locking nut is firstly contacted with the elastic conical surface, and simultaneously, the thread of the locking nut still has screwing allowance before locking.

Claims

1. The utility model provides a manual quick infinitely variable control elevating gear which characterized in that: the tray comprises a tray body, four quick adjustment units forming a square array are arranged on the tray body, the structure of each quick adjustment unit is the same, the quick adjustment units all comprise stand columns penetrating through the tray body, the top ends of the stand columns can be fixedly installed on the top of the inner wall of a supporting frame, locking screw sleeves which are embedded on the tray body and can slide up and down along the stand columns are sleeved on the stand columns, the locking screw sleeves are clamped on the tray body by a fixing pressing plate and are fixed, the fixing pressing plate and the tray body are fixed through screws, the bottom of each locking screw sleeve is an elastic conical surface with a cross groove, threads extending to the top are arranged at positions, close to the elastic conical surfaces, of the locking screw sleeves, locking nuts capable of rotating and moving up and down along the threads are sleeved on the threads, and conical surfaces corresponding to the elastic conical surfaces are.

2. The manual fast stepless adjustment lifting device according to claim 1, characterized in that: the part of the top of the locking screw sleeve penetrating through the fixed pressing plate is in a shape that two sides of the circular tube are milled into planes.

3. The manual fast stepless adjustment lifting device according to claim 1, characterized in that: the elastic conical surface is made of red copper.

4. The manual fast stepless adjustment lifting device according to claim 1, characterized in that: the locking nut is made of stainless steel.

5. The manual fast stepless adjustment lifting device according to claim 1, characterized in that: the locking nut is a butterfly nut.

6. The manual fast stepless adjustment lifting device according to claim 1, characterized in that: and a split pin is arranged at the part of the upright post below the locking nut.

7. An adjustment method applied to the manual rapid stepless adjustment lifting device of claim 1, characterized in that: when the height of the tray needs to be adjusted, the locking nuts of the quick adjusting units are rotated to separate the conical surface at the bottom of the locking nut from the elastic conical surface, and the elastic conical surface is separated from the stand column after being reset, so that the height of the tray can be adjusted up and down along the stand column, after the adjustment is finished, the locking nuts of the quick adjusting units are rotated, the elastic conical surface is extruded by the conical surface at the bottom of the locking nut to deform the locking stand column, and the height of the tray is fixed.