CN111692158B

CN111692158B - Structure for controlling stroke of hydraulic cylinder

Info

Publication number: CN111692158B
Application number: CN202010591696.5A
Authority: CN
Inventors: 彭淦成; 彭发雄
Original assignee: Foshan Nanhai Faxiong Hydraulic Auto Parts Industry Co ltd
Current assignee: Foshan Nanhai Faxiong Hydraulic Auto Parts Industry Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2022-06-10
Anticipated expiration: 2040-06-24
Also published as: CN111692158A

Abstract

The structure for controlling the stroke of the hydraulic cylinder comprises a placing seat and a cylinder body, wherein the free end of the cylinder body is connected with a moving block, the bottom of the moving block is provided with a limiting slide block, the limiting slide block is arranged in a limiting slide groove in the placing seat in a sliding mode, and a touch mechanism is arranged in the limiting slide groove. The invention starts the cylinder body, the movable block moves, then the limiting slide block is driven to move in the limiting slide groove, and then the sliding stability is realized to be in fit contact with the contact block, so that the touch column is driven to move, the touch block moves, and the upper contact piece is electrically connected with the lower contact piece for contact, thereby controlling the work of the cylinder body.

Description

Structure for controlling stroke of hydraulic cylinder

Technical Field

The invention relates to the technical field of hydraulic cylinder strokes, in particular to a structure for controlling the hydraulic cylinder stroke.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The structural forms are various, and the classification methods are also various: the motion mode can be divided into a linear reciprocating motion type and a rotary swinging type; the hydraulic pressure can be divided into a single-acting type and a double-acting type according to the action condition of the hydraulic pressure; according to the structural form, the device can be divided into a piston type, a plunger type, a multi-stage telescopic sleeve type, a rack and pinion type and the like; the device can be divided into a pull rod, an earring, a bottom foot, a hinge shaft and the like according to the installation form; the pressing force can be classified into 16MPa, 25MPa, 31.5MPa, etc.

The existing hydraulic cylinder stroke control structure is simple, the hydraulic cylinder stroke is difficult to control, meanwhile, the power of the hydraulic cylinder is large, the structure of the device is easy to damage during control, and further improvement treatment is needed.

Disclosure of Invention

The present invention is directed to a structure for controlling the stroke of a hydraulic cylinder, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a structure for controlling the stroke of a hydraulic cylinder comprises a placing seat and a cylinder body, wherein the free end of the cylinder body is connected with a movable block, the bottom of the movable block is provided with a limiting slide block, the limiting slide block is arranged in a limiting slide groove on the placing seat in a sliding manner, and a touch mechanism is arranged in the limiting slide groove;

the limiting slide block is provided with a mounting groove, a protection mechanism is installed in the mounting groove in a limiting manner, mounting boxes are arranged on the limiting slide block on two sides of the mounting groove, a lead screw is arranged in each mounting box, and one end of each lead screw penetrates through each mounting box and is connected with a rotating handle;

threaded connection has the silk piece on the lead screw, is connected with spacing post on the silk piece, and spacing post passes the spacing groove on the mounting box and is connected with fixed upstand, and fixed upstand bottom is connected with fixed compact heap, the common fixed mounting protection mechanism of two fixed compact heaps.

Preferably, the triggering mechanism comprises a triggering sleeve, the triggering sleeve is arranged in the limiting sliding chute, a triggering block is arranged in the triggering sleeve in a sliding mode and connected with the upper contact piece, a lower contact piece is arranged on the inner bottom wall of the triggering sleeve, and a triggering column is arranged on one side, away from the upper contact piece, of the triggering block.

Preferably, a reset spring is arranged on the touch column, one end of the reset spring is connected with the contact block, and the other end of the reset spring is connected with the outer wall of the touch sleeve.

Preferably, the upper contact piece and the lower contact piece are electrically connected and used for controlling the work of the cylinder body.

Preferably, the actuating column is connected with a contact block through the actuating sleeve.

Preferably, the protection mechanism comprises a protection sleeve box, the protection sleeve box is externally connected with a stable sleeve box, a sliding stable block is arranged in the stable sleeve box in a sliding manner, the sliding stable block is connected with a sliding stable block which is matched with the contact block, a positioning vertical column is arranged in the protection sleeve box, a trapezoidal seat is arranged at the bottom end of the positioning vertical column, a sliding groove is arranged on the trapezoidal seat, a pulley is arranged in the sliding groove in a sliding manner, the pulley is connected with mounting rods, and the two mounting rods penetrate through the protection sleeve box to be connected with the sliding stable block,

preferably, the positioning vertical column is made of elastic materials.

Preferably, the trapezoidal seat is provided with a sliding roller, and the sliding roller is arranged in a sliding manner with the inner side wall of the protective sleeve box.

Preferably, the other end of the screw rod is rotatably connected with the inner wall of the mounting box through a bearing seat.

Compared with the prior art, the invention has the beneficial effects that

(1) The invention starts the cylinder body, the movable block moves, then the limiting slide block is driven to move in the limiting slide groove, and then the sliding stability is realized to be in fit contact with the contact block, so that the touch column is driven to move, the touch block moves, and the upper contact piece is electrically connected with the lower contact piece for contact, thereby controlling the work of the cylinder body.

(2) The steady removal of sliding drives the steady piece that slides and removes, drives the installation pole removal then to realize that the pulley slides in the sliding tray, drive trapezoidal seat then and remove, the slip gyro wheel removes at the cover box of protection, has improved the stability of structure, thereby can reduce the collision to trigger mechanism, has improved the life-span of device structure.

(3) The rotating handle rotates, the screw rod rotates, the screw block moves on the screw rod, the limiting column slides in the limiting groove, then the fixed tight block is driven to move, the two fixed tight blocks are fixedly installed with the protection mechanism together, and the protection mechanism is convenient to detach and maintain.

Drawings

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

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is a schematic structural view illustrating the movement of the fixed clamping block according to the present invention;

FIG. 4 is a schematic structural diagram of the triggering mechanism of the present invention;

FIG. 5 is a schematic structural view of the protection mechanism of the present invention;

FIG. 6 is a schematic view of the movement structure of the sliding roller according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, in the embodiment of the present invention, a structure for controlling a stroke of a hydraulic cylinder includes a placing base 1 and a cylinder body 2, a moving block 3 is connected to a free end of the cylinder body 2, a limiting slide block 4 is disposed at a bottom of the moving block 3, the limiting slide block 4 is slidably disposed in a limiting slide groove 5 on the placing base 1, and a triggering mechanism 6 is disposed in the limiting slide groove 5;

the limiting slide block 4 is provided with a mounting groove 7, a protection mechanism 8 is installed in the mounting groove 7 in a limiting manner, mounting boxes 9 are arranged on the limiting slide block 4 on two sides of the mounting groove 7, a lead screw 10 is arranged in each mounting box 9, and one end of each lead screw 10 penetrates through each mounting box 9 and is connected with a rotating handle 11;

the lead screw 10 is connected with a screw block 13 through threads, the screw block 13 is connected with a limiting column 14, the limiting column 14 penetrates through a limiting groove 15 in the mounting box 9 to be connected with a fixed vertical column 16, the bottom end 16 of the fixed vertical column is connected with a fixed tightening block 17, and the two fixed tightening blocks 17 are fixedly mounted with the protection mechanism 8 together.

The cylinder body 2 is started, the moving block 3 moves to drive the limiting slide block 4 to move in the limiting slide groove 5, and then the sliding stability 84 is achieved to be in matched contact with the contact block 66, so that the touch column 65 is driven to move, the touch block 62 moves, and the upper touch piece 63 is in electrical contact with the lower touch piece 64, so that the work of the cylinder body 2 is controlled;

the rotating handle 11 rotates, the screw rod 10 rotates, the screw block 13 moves on the screw rod 10, the limiting column 14 slides in the limiting groove 15, the fixed tightening blocks 17 are driven to move, the two fixed tightening blocks 17 are jointly and fixedly provided with the protection mechanism 8, and the protection mechanism 8 is convenient to disassemble and maintain;

the triggering mechanism 6 of the present embodiment includes a triggering sleeve 61, the triggering sleeve 61 is disposed in the limiting sliding groove 5, a triggering block 62 is slidably disposed in the triggering sleeve 61, the triggering block 62 is connected to the upper contact 63, a lower contact 64 is disposed on an inner bottom wall of the triggering sleeve 61, and a triggering post 65 is disposed on a side of the triggering block 62 away from the upper contact 63.

The touch column 65 of this embodiment is provided with a return spring 67, one end of the return spring 67 is connected with the contact block 66, and the other end is connected with the outer wall of the touch sleeve 61.

The upper contact 63 and the lower contact 64 of the present embodiment are electrically connected and are used to control the operation of the cylinder 2.

The actuating post 65 of this embodiment has a contact block 66 attached through the actuating sleeve 61.

The protection mechanism 8 of this embodiment includes a protection sleeve box 81, a stabilization sleeve box 82 is connected outside the protection sleeve box 81, a sliding stabilization block 83 is slidably disposed in the stabilization sleeve box 82, the sliding stabilization block 83 is connected with a sliding stabilization block 84, the sliding stabilization block 84 is matched with the contact block 66, a positioning upright post 85 is disposed in the protection sleeve box 81, a trapezoidal seat 86 is disposed at the bottom end of the positioning upright post 85, a sliding groove 87 is disposed on the trapezoidal seat 86, a pulley 88 is slidably disposed in the sliding groove 87, the pulley 88 is connected with a mounting rod 89, two mounting rods 89 pass through the protection sleeve box 81 to be connected with the sliding stabilization block 83,

the positioning upstand 85 of this embodiment is made of an elastomeric material.

The trapezoidal seat 86 of this embodiment is provided with a sliding roller 810, and the sliding roller 810 and the inner side wall of the protection sleeve box 81 are slidably disposed.

The other end of the screw rod 10 of the embodiment is rotatably connected with the inner wall of the mounting box 9 through a bearing seat 12.

The sliding stabilizer 84 moves to drive the sliding stabilizer 83 to move and then drive the mounting rod 89 to move, so that the pulley 88 slides in the sliding groove 87 and then drives the trapezoidal seat 86 to move, the sliding roller 810 moves in the protective sleeve box 81, the stability of the structure is improved, the collision to the touch mechanism 6 can be reduced, and the service life of the device structure is prolonged.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A structure for controlling the stroke of a hydraulic cylinder comprises a placing seat (1) and a cylinder body (2), and is characterized in that the free end of the cylinder body (2) is connected with a moving block (3), the bottom of the moving block (3) is provided with a limiting slide block (4), the limiting slide block (4) is arranged in a limiting slide groove (5) on the placing seat (1) in a sliding manner, and a trigger mechanism (6) is arranged in the limiting slide groove (5);

the limiting slide block (4) is provided with a mounting groove (7), a protection mechanism (8) is installed in the mounting groove (7) in a limiting manner, mounting boxes (9) are arranged on the limiting slide block (4) on two sides of the mounting groove (7), a lead screw (10) is arranged in each mounting box (9), and one end of each lead screw (10) penetrates through each mounting box (9) and is connected with a rotating handle (11);

threaded connection has silk piece (13) on lead screw (10), is connected with spacing post (14) on silk piece (13), and spacing post (14) pass spacing groove (15) on mounting box (9) and are connected with fixed upstand (16), and fixed upstand (16) bottom is connected with fixed compact heap (17), two fixed compact heap (17) common fixed mounting protection mechanisms (8).

2. The structure for controlling the stroke of the hydraulic cylinder as claimed in claim 1, wherein the triggering mechanism (6) comprises a triggering sleeve (61), the triggering sleeve (61) is arranged in the limiting sliding groove (5), a triggering block (62) is arranged in the triggering sleeve (61) in a sliding manner, the triggering block (62) is connected with an upper contact piece (63), a lower contact piece (64) is arranged on the inner bottom wall of the triggering sleeve (61), and a triggering column (65) is arranged on one side of the triggering block (62) away from the upper contact piece (63).

3. A structure for controlling the stroke of a hydraulic cylinder according to claim 2, characterized in that the triggering post (65) is provided with a return spring (67), one end of the return spring (67) is connected with the contact block (66), and the other end is connected with the outer wall of the triggering sleeve (61).

4. A structure for controlling the stroke of a hydraulic cylinder according to claim 2, characterized in that the upper contact (63) is electrically connected to the lower contact (64) and is used for controlling the operation of the cylinder body (2).

5. An arrangement for controlling the stroke of a hydraulic cylinder according to claim 2, characterized in that the activating column (65) has a contact block (66) connected through the activating sleeve (61).

6. The structure for controlling the stroke of the hydraulic cylinder as recited in claim 1, wherein the protection mechanism (8) comprises a protection sleeve box (81), a stable sleeve box (82) is connected outside the protection sleeve box (81), a sliding stable block (83) is slidably arranged in the stable sleeve box (82), the sliding stable block (83) is connected with a sliding stable block (84), the sliding stable block (84) is matched with the contact block (66), a positioning upright post (85) is arranged in the protection sleeve box (81), a trapezoidal seat (86) is arranged at the bottom end of the positioning upright post (85), a sliding groove (87) is arranged on the trapezoidal seat (86), a pulley (88) is slidably arranged in the sliding groove (87), a mounting rod (89) is connected with the pulley (88) through the protection sleeve box (81), and two mounting rods (89) are connected with the sliding stable block (83) through the protection sleeve box (81).

7. An arrangement for controlling the stroke of a hydraulic cylinder according to claim 6, characterized in that the positioning upstand (85) is made of an elastic material.

8. The structure for controlling the stroke of the hydraulic cylinder as claimed in claim 6, wherein the trapezoidal seat (86) is provided with a sliding roller (810), and the sliding roller (810) is slidably arranged with the inner side wall of the protective sleeve box (81).

9. The structure for controlling the stroke of the hydraulic cylinder as claimed in claim 1, characterized in that the other end of the screw rod (10) is rotatably connected with the inner wall of the mounting box (9) through a bearing seat (12).