CN203906651U

CN203906651U - Hydraulic buffer

Info

Publication number: CN203906651U
Application number: CN201420360886.6U
Authority: CN
Inventors: 徐永权
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-24
Filing date: 2014-06-24
Publication date: 2014-10-29
Anticipated expiration: 2024-06-24

Abstract

The utility model discloses a hydraulic buffer. The hydraulic buffer comprises a buffer body, wherein a first oil cavity and a second oil cavity are formed in the body; the second oil cavity is positioned above the first oil cavity; an axis is arranged in the first oil cavity; a piston is arranged on the axis; a left oil inlet channel and a right oil inlet channel are formed between the first oil cavity and the second oil cavity; a left oil outlet channel and a right oil outlet channel are connected to the left oil inlet channel and the right oil inlet channel; a left sliding rod and a right sliding rod are arranged in the second oil cavity; the left sliding rod and the right sliding rod are sleeved by a left return spring and a right return spring; the left sliding rod and the right sliding rod are sleeved by a left slide block and a right slide block; the left slide block is positioned on the right side of the left oil inlet channel; the right slide block is positioned on the left side of the right oil inlet channel; a pressing block is arranged between the two return springs; a bearing rod is connected to the pressing block; and the bearing rod is connected with a bearing block on the top of the body. The hydraulic buffer disclosed by the utility model is high in reliability and high in interference resistance and has high practicality, and the maintenance cost is reduced.

Description

Hydraulic bjuffer

Technical field

The utility model relates to a kind of engineering mechanical device, is specially a kind of hydraulic bjuffer, belongs to mechanical equipment technical field.

Background technique

Hydraulic bjuffer is a kind ofly to rely on hydraulic damping to carry out buffer deceleration to the safety buffer device stopping to object thereon of effect, and it can play protective action to a certain extent to other equipment that are connected.Now current hydraulic bjuffer is mainly used in the machinery such as lifting transportation, elevator, metallurgy, harbour machinery, rail truck, and its effect is to prevent that in the course of the work hard collision from causing mechanism to damage.The hydraulic bjuffer using in the market, is single spring buffer structure mostly, only has a side that Returnning spring is installed, and promotes piston extruding fluid when spring stress, and then the effect that produces compensator or trimmer pressure.But, the buffer capacity that the hydraulic bjuffer of this structure produces a little less than, therefore affected the load-bearing buffer capacity of equipment, and its working life is shorter, after using a period of time, easily there is the situation that spring reset ability weakens, cause like this reliability of equipment to reduce, once there is the phenomenon of the aging of equipment integral replacing of just having to, this has also caused the higher problem of user cost.

Model utility content

For above-mentioned deficiency of the prior art, main purpose of the present utility model is to solve the existing current poor problem of hydraulic bjuffer reliability, and a kind of good reliability, hydraulic bjuffer that buffer capacity is stronger are provided.

The technical solution of the utility model: hydraulic bjuffer, it is characterized in that, the body that comprises buffer, in described body, be provided with the first oil pocket and the second oil pocket, described the second oil pocket and the equal cross setting of the first oil pocket, described the second oil pocket is positioned at the top of the first oil pocket, in described the first oil pocket, axle center is installed, and on described axle center, piston is installed; Between described the first oil pocket and the second oil pocket, be provided with left oil inlet passage and right oil inlet passage, described left oil inlet passage is positioned at piston left side, right oil inlet passage is positioned at piston right side, between left oil inlet passage and the first oil pocket, be connected with left oil discharge passage, between right oil inlet passage and the first oil pocket, be connected with right oil discharge passage; Left slide bar and right slide bar are installed in the second described oil pocket, on left slide bar, cover has left Returnning spring, on right slide bar, cover has right Returnning spring, on described left slide bar, also cover has left slider, on described right slide bar, also cover has right slide block, described left slider is positioned at the right side of left oil inlet passage, and described right slide block is positioned at the left side of right oil inlet passage; Between two described Returnning springs, be provided with a briquetting, on described briquetting, be connected with bearing bar, described bearing bar is connected with the bearing block of bodies top.

Optimally, described left slide bar is cone structure with two terminations relative on right slide bar.Here adopt the design of cone structure, between two slide bars that are and briquetting, can produce good sliding effect, when briquetting is stressed, to move down, at this moment briquetting will promote left slide bar and right slide bar respectively to two side shiftings, and the design of taper here can be good at reducing the friction between briquetting and slide bar, make whole sliding process smooth-going and can be not stuck.

Optimally, on described left slide bar, be connected with left adjusting knob, on right slide bar, be connected with right adjusting knob.Here the effect of left and right adjusting knob is to regulate the position of left and right slide bar, can, manually by left and right slide bar transverse shifting, make it in best position.

Optimally, in described body bottom, be also connected with base.The collision that can protect body to be subject to by mounting base, plays buffer function.The base here can adopt soft rubber material.

With respect to prior art, the utlity model has following beneficial effect:

1, reliability is better: hydraulic bjuffer of the present utility model has adopted the structural type that damping spring is all set in both sides, like this can be when load-bearing pressurized increase buffer function at double, thereby make equipment can meet larger load-bearing cushion effect, and be not prone to the problem that cushion effect falls suddenly, therefore improved the reliability of equipment.

2, reduced maintaining cost: owing to having reduced the rate of fault of equipment, therefore the cost of maintenance also significantly reduces, and has also alleviated maintenance man's workload.

3, antijamming capability is stronger: hydraulic bjuffer of the present utility model is subject to the impact of temperature and humidity very little, can under rugged environment, keep the working state of normal reliable, therefore has good practicability.

Accompanying drawing explanation

Fig. 1 is the plan view of the utility model hydraulic bjuffer.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the plan view of Fig. 1.

In figure, 1-body, 2-the first oil pocket, 3-the second oil pocket, 4-axle center, 5-piston, the left oil inlet passage of 6-, the right oil inlet passage of 7-, the left oil discharge passage of 8-, the right oil discharge passage of 9-, the left slide bar of 10-, the right slide bar of 11-, the left Returnning spring of 12-, the right Returnning spring of 13-, 14-left slider, the right slide block of 15-, 16-briquetting, 17-bearing bar, 18-bearing block, the left adjusting knob of 19-, the right adjusting knob of 20-, 21-base.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

As shown in Figure 1, Figure 2 and Figure 3, the utility model has been introduced a kind of hydraulic bjuffer, and it comprises the body 1 of buffer, in described body 1 bottom, is connected with base 21.Described base 21 can be selected flexible quality of rubber materials, and it can play the effect of buffering when body 1 is stressed.In described body 1, be provided with the first oil pocket 2 and the second oil pocket 3, described the second oil pocket 3 and the equal cross setting of the first oil pocket 2, described the second oil pocket 3 is positioned at the top of the first oil pocket 2.The first described oil pocket 2 is communicated with oil inlet pipe, can be to the interior oiling of the first oil pocket 2 by oil inlet pipe, and this is prior art, at this, does not describe in detail.In described the first oil pocket 2, axle center 4 is installed, on described axle center 4, piston 5 is installed, described axle center 4 can drive piston 5 to do transverse reciprocating motion.Between described the first oil pocket 2 and the second oil pocket 3, be provided with left oil inlet passage 6 and right oil inlet passage 7, described left oil inlet passage 6 and right oil inlet passage 7 are symmetrical arranged with respect to the center line of body 1, described left oil inlet passage 6 is positioned at piston 5 left sides, and right oil inlet passage 7 is positioned at piston 5 right sides; When piston 5 is positioned at neutral position, left oil inlet passage 6 and right oil inlet passage 7 are communicated with the first oil pocket 2 respectively; When piston 5 is stressed, move to when left side, piston 5 will block left oil inlet passage 6, at this moment only have right oil inlet passage 7 unimpeded; When piston 5 is stressed while moving to right side, piston 5 will block right oil inlet passage 7, at this moment only have left oil inlet passage 6 unimpeded.Between left oil inlet passage 6 and the first oil pocket 2, be also connected with left oil discharge passage 8, between right oil inlet passage 7 and the first oil pocket 2, be also connected with right oil discharge passage 9; The all oblique settings of left oil discharge passage 8 and right oil discharge passage 9.In the second described oil pocket 3, left slide bar 10 and right slide bar 11 are installed, described left slide bar 10 is cone structure with two terminations relative on right slide bar 11, and left slide bar 10 and right slide bar 11 can be at the interior transverse shiftings of the second oil pocket 3.On described left slide bar 10, be connected with left adjusting knob 19, on right slide bar 11, be connected with right adjusting knob 20.The effect that left adjusting knob 19 and right adjusting knob 20 be set is here can the left slide bar 10 of manual tune and the lateral attitude of right slide bar 11, make it in normal position, particularly in the inaccurate situation of spring reset, can be effective by the mode of manual tune occurring.On left slide bar 10, cover has left Returnning spring 12, and on right slide bar 11, cover has right Returnning spring 13, and left Returnning spring 12 contacts with the chamber inner wall of place one side respectively with right Returnning spring 13.On described left slide bar 10, also cover has left slider 14, and on described right slide bar 11, also cover has right slide block 15, and described left slider 14 is positioned at the right side of left oil inlet passage 6, and described right slide block 15 is positioned at the left side of right oil inlet passage 7; When left slider 14 slides left, can shelter from left oil inlet passage 6, when right slide block 15 slides, can shelter from right oil inlet passage 7 to the right, just can play in this way the effect that changes oil pocket chamber both sides oil inlet quantity.Between two described Returnning springs, be provided with a briquetting 16, on described briquetting 16, be connected with bearing bar 17, described bearing bar 17 is connected with the bearing block 18 at body 1 top.The briquetting 16 here and bearing bar 17 are all to play a part transmission of pressure.

Working principle: when hydraulic bjuffer is collided pressure, bearing block 18 passes to left and right slide bar by kinetic energy by bearing bar 17 and briquetting 16, left and right slide bar drives respectively left and right slide block to two Slideslips, at this moment left slider 14 blocks left oil inlet passage 6, right slide block 15 blocks right oil inlet passage 7, squeezed first oil pocket 1 of compressing into of fluid in the second oil pocket 3, at this moment piston 5 is extruded and produces motion, make again fluid squeeze out from the gap between piston 5 and two oil inlet passages, enter the second oil pocket 3.When piston 5 setting in motion, due to and oil inlet passage between gap larger, fluid is easily extruded; In when piston continues motion, this gap becomes more and more less, and the resistance of piston 5 constantly increases, and is finally tending towards stopping.And left and right slide bar is under the drive of Returnning spring, also automatically get back to initial position.In this process, the compressed process of buffer is the process of fluid acting of pushing by piston, and this process has consumed a large amount of kinetic energy, therefore plays buffer function.Complete when work, piston is pushed to home position, has just completed a work cycle.

It should be noted that, above embodiment is only in order to technical solutions of the utility model to be described but not restriction technologies scheme, although claimant is explained in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, the modification that those carry out technical solutions of the utility model or be equal to replacement, aim and the scope that can not depart from the technical program, all should be encompassed in the middle of the utility model claim scope.

Claims

1. hydraulic bjuffer, it is characterized in that, the body (1) that comprises buffer, in described body (1), be provided with the first oil pocket (2) and the second oil pocket (3), described the second oil pocket (3) and the first oil pocket (2) be cross setting all, described the second oil pocket (3) is positioned at the top of the first oil pocket (2), and axle center (4) is installed in described the first oil pocket (2), and piston (5) is installed on described axle center (4); Between described the first oil pocket (2) and the second oil pocket (3), be provided with left oil inlet passage (6) and right oil inlet passage (7), described left oil inlet passage (6) is positioned at piston (5) left side, right oil inlet passage (7) is positioned at piston (5) right side, between left oil inlet passage (6) and the first oil pocket (2), be connected with left oil discharge passage (8), between right oil inlet passage (7) and the first oil pocket (2), be connected with right oil discharge passage (9); Left slide bar (10) and right slide bar (11) are installed in described the second oil pocket (3), at the upper cover of left slide bar (10), there is left Returnning spring (12), at the upper cover of right slide bar (11), there is right Returnning spring (13), on described left slide bar (10), also cover has left slider (14), on described right slide bar (11), also cover has right slide block (15), described left slider (14) is positioned at the right side of left oil inlet passage (6), and described right slide block (15) is positioned at the left side of right oil inlet passage (7); Between two described Returnning springs, be provided with a briquetting (16), be connected with bearing bar (17) on described briquetting (16), described bearing bar (17) is connected with the bearing block (18) at body (1) top.

2. hydraulic bjuffer according to claim 1, is characterized in that, described left slide bar (10) is cone structure with upper two the relative terminations of right slide bar (11).

3. hydraulic bjuffer according to claim 1 and 2, is characterized in that, on described left slide bar (10), is connected with left adjusting knob (19), is connected with right adjusting knob (20) on right slide bar (11).

4. hydraulic bjuffer according to claim 3, is characterized in that, in described body (1) bottom, is also connected with base (21).