Double-cylinder lifting mechanism
By using the telescopic connector and high-pressure oil pipe design of the dual-cylinder lifting mechanism, the problem of synchronous load and movement of the hydraulic cylinders is solved, realizing synchronous extension and retraction of the hydraulic cylinders and stable lifting, thus avoiding equipment damage.
Patent Information
- Application Number
- CN202423161811.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-20
AI Technical Summary
A single hydraulic cylinder has limited load-bearing capacity, and when multiple hydraulic cylinders work together, there are errors in the extension and retraction rates and misalignment issues, which can lead to damage to the hydraulic cylinders and the connecting lifting components.
A dual-cylinder lifting mechanism is adopted, which connects two adjusting cylinders through a telescopic connector. High-pressure oil pipes are used to connect the cylinder grooves to maintain consistent internal pressure, ensuring that the hydraulic cylinders are loaded and moved synchronously.
This achieves synchronous load on the hydraulic cylinders, avoiding damage and misalignment caused by asynchronous extension and retraction rates, and improving the service life and stability of the equipment.
Smart Images
Figure CN223674208U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a lifting mechanism, especially a double-cylinder lifting mechanism. BACKGROUND
[0002] The hydraulic cylinder lifting mechanism is a common mechanism, but the single hydraulic cylinder is often limited in carrying capacity, the cost of the hydraulic cylinder with better quality and higher load often doubles, and configuring two or more groups of hydraulic cylinders becomes the best choice.
[0003] However, when multiple hydraulic cylinders work at the same time, due to the distribution pressure of hydraulic oil, there will be a certain error in the extension rate of the hydraulic cylinder, which will further cause the single hydraulic cylinder to share too much load. This situation first causes damage to the hydraulic cylinder, and secondly, due to the different extension rates of the two hydraulic cylinders, the output end is misaligned, which causes damage to the connecting lifting member. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a double-cylinder lifting mechanism to solve the problems in the above background technology.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a double-cylinder lifting mechanism, comprising two hydraulic cylinders and two adjusting cylinders, a telescopic connecting piece is connected between the two adjusting cylinders, a cylinder groove is formed in the adjusting cylinder, a gas cylinder is slidably installed in the cylinder groove, a connecting column is fixedly connected to the lower surface of the gas cylinder, a first connecting flange is fixedly connected to the upper end of the hydraulic cylinder and the lower end of the connecting column, a connecting head is fixedly connected to the adjusting cylinder, and a high-pressure oil pipe is connected between the two connecting heads.
[0006] Preferably, a second connecting flange is fixedly connected to the upper surface of the adjusting cylinder.
[0007] Preferably, the telescopic connecting piece comprises a first connecting block and two second connecting blocks, sliding grooves are formed in the two sides of the first connecting block, and the second connecting blocks are slidably installed in the first connecting block.
[0008] Preferably, a limiting recess is formed in the front surface of the first connecting block, a limiting protrusion is fixedly connected to the front surface of the second connecting block, and the limiting protrusion and the limiting recess are in sliding fit.
[0009] Preferably, a connecting sleeve ring is fixedly connected to one end of the first connecting block, and the connecting sleeve ring is fixedly sleeved on the adjusting cylinder.
[0010] Compared with the prior art, the utility model has the advantages of:
[0011] 1、 by setting the telescopic connecting piece connecting two adjusting cylinders, first can ensure that two adjusting cylinders move up and down synchronously, avoid two hydraulic cylinders due to different telescopic rate problem, and lead to two adjusting cylinders dislocation problem.
[0012] 2、 by setting the high pressure oil pipe connecting two cylinder groove, keep the same pressure inside cylinder groove, and then make two hydraulic cylinder load synchronous, avoid the problem of one of the hydraulic cylinder load increases. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is the whole structure schematic view of the utility model;
[0014] Figure 2 It is the utility model's sectional view;
[0015] Figure 3 It is the utility model's telescopic connecting piece explosion map;
[0016] Figure 4 It is the utility model's Figure 2 A enlarged view of the middle A;
[0017] In the drawing: 1, hydraulic cylinder;101, first connecting flange;2, adjusting cylinder;201, second connecting flange;202, cylinder groove;203, air cylinder;204, connecting column;205, connecting head;3, telescopic connecting piece;301, first connecting block;302, second connecting block;303, sliding groove;304, limit recess;305, limit lug;306, connecting sleeve ring;4, high pressure oil pipe. DETAILED DESCRIPTION
[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0019] Please refer to Figures 1-4 The utility model provides a technical scheme: a double cylinder lifting mechanism, including two hydraulic cylinders 1, two adjusting cylinders 2, the telescopic connecting piece 3 is connected between two adjusting cylinders 2, the cylinder groove 202 is seted up in adjusting cylinder 2, the air cylinder 203 is slidably installed in cylinder groove 202, the connecting column 204 is fixedly connected below the air cylinder 203, the first connecting flange 101 is fixedly connected to the upper end of hydraulic cylinder 1 in the lower end of connecting column 204, the connecting head 205 is fixedly connected on adjusting cylinder 2, the high pressure oil pipe 4 is connected between two connecting heads 205.
[0020] In the embodiment, the two cylinder grooves 202 can be connected together by the high-pressure oil pipe 4, the cylinder groove 202 is filled with hydraulic oil, then the hydraulic cylinder 1 is connected to the first connecting flange 101 on the connecting column 204 by bolts, and the two adjusting cylinders 2 are connected together by the telescopic connecting piece 3, which can ensure that the two adjusting cylinders 2 are synchronously moved up, and the hydraulic cylinder 1 is synchronously started to drive the connecting column 204 to move up, and the connecting column 204 moves up to drive the cylinder 203 to move up, at this time, the two cylinders 203 in the two adjusting cylinders 2 are at the same height, and the adjusting cylinder 2 is pushed up by the hydraulic oil due to the unchanged pressure in the adjusting cylinder 2, and the adjusting cylinder 2 is synchronously pushed up, and then the adjusting cylinder 2 is used for lifting, when the telescopic rate of one of the hydraulic cylinders 1 is slow, at this time, the cylinder 203 connected to the hydraulic cylinder 1 is lower than the other cylinder 203, but the pressure in the cylinder groove 202 is the same due to the connection of the high-pressure oil pipe 4, and the loads of the two hydraulic cylinders 1 are the same, which avoids the problem that the loads of the hydraulic cylinders 1 are different due to the different telescopic rates of the hydraulic cylinders 1, and the telescopic connecting piece 3 connects the two adjusting cylinders 2, so that the two adjusting cylinders 2 are always synchronously lifted, thereby avoiding the problem of bending and damage of the connecting lifting mechanism, and the telescopic connecting piece 3 is telescopic, thereby the spacing between the two hydraulic cylinders 1 can be adjusted according to the actual installation requirement.
[0021] In order to achieve the purpose of connecting the two adjusting cylinders 2, the device adopts the following technical scheme: the second connecting flange 201 is fixedly connected to the adjusting cylinder 2, and the telescopic connecting piece 3 comprises a first connecting block 301 and two second connecting blocks 302.
[0022] The second connecting flange 201 is used for connecting the mechanism that needs to be lifted, and then the adjusting cylinder 2 is used for lifting operation, the second connecting block 302 is inserted into the sliding groove 303, so that the telescopic connecting piece 3 can be telescopic adjusted to adapt to the different spacing of the two adjusting cylinders 2.
[0023] In order to achieve the purpose of connecting the telescopic connecting piece 3 between the two adjusting cylinders 2, the device adopts the following technical scheme: the first connecting block 301 is provided with a limiting groove 304 on the front surface, the second connecting block 302 is fixedly connected with a limiting convex block 305 on the front surface, the limiting convex block 305 and the limiting groove 304 are in sliding fit, and the first connecting block 301 is fixedly connected with a connecting sleeve ring 306 at one end, and the connecting sleeve ring 306 is fixedly sleeved on the adjusting cylinder 2.
[0024] The sliding stroke of the second connecting block 302 can be limited by the sliding cooperation of the limiting groove 304 and the limiting block 305, the second connecting block 302 is prevented from sliding out of the slide groove 303, the connecting sleeve ring 306 is sleeved on the adjusting cylinder 2, and then the telescopic connecting piece 3 and the two adjusting cylinders 2 are connected together.
[0025] The working principle and use process of the utility model: the hydraulic cylinder 1 and the first connecting flange 101 on the connecting column 204 are connected together by bolts, then the adjusting cylinder 2 and the hydraulic cylinder 1 are connected together, the mechanism needing to be lifted is connected by the second connecting flange 201, the hydraulic cylinder 1 can drive the adjusting cylinder 2 to move upwards when being started, then lifting operation is carried out, when the extension rate of one of the hydraulic cylinders 1 is slow, the positions of the two cylinders 203 will gradually be staggered, the internal volume of the cylinder groove 202 will change, the hydraulic oil will flow at this time, the internal pressure of the cylinder groove 202 is kept the same, then the loads of the two hydraulic cylinders 1 are synchronized, the load of one of the hydraulic cylinders 1 is prevented from increasing, and the two adjusting cylinders 2 can only move upwards synchronously under the connection of the telescopic connecting piece 3, the problem that the two adjusting cylinders 2 are staggered is avoided.
[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A double-cylinder lifting mechanism comprising two hydraulic cylinders (1), two adjusting cylinders (2), characterized in that: Two said adjusting cylinder (2) between the connection has telescopic connecting piece (3), the cylinder (202) is set in adjusting cylinder (2), the cylinder (202) in sliding installation has pneumatic cylinder (203), the connecting column (204) is fixedly connected below pneumatic cylinder (203), the first connecting flange (101) is fixedly connected with the upper end of hydraulic cylinder (1) in connecting column (204) lower end, the connecting head (205) is fixedly connected on adjusting cylinder (2), two connecting head (205) between the connection has high pressure oil pipe (4).
2. A dual cylinder lifting mechanism according to claim 1, wherein: The second connecting flange (201) is fixedly connected on the upper surface of the adjusting cylinder (2).
3. A dual cylinder lifting mechanism according to claim 1, wherein: The telescopic connecting piece (3) comprises a first connecting block (301), two second connecting blocks (302), the first connecting block (301) is provided with a sliding groove (303) on both sides, and the second connecting block (302) is slidably installed in the first connecting block (301).
4. A dual cylinder lifting mechanism according to claim 3, wherein: The first connecting block (301) is provided with a limiting groove (304) on the front surface, and the second connecting block (302) is fixedly connected with a limiting block (305) on the front surface.
5. A dual cylinder lifting mechanism as claimed in claim 3, wherein: The first connecting block (301) is fixedly connected with a connecting sleeve ring (306) at one end, and the connecting sleeve ring (306) is fixedly sleeved on the adjusting cylinder (2).