CN219724459U

CN219724459U - Mechanical distance limiting device of hydraulic press

Info

Publication number: CN219724459U
Application number: CN202320115153.5U
Authority: CN
Inventors: 张志良
Original assignee: Hefei Hede Forging Machine Tool Co ltd
Current assignee: Hefei Hede Forging Machine Tool Co ltd
Priority date: 2023-01-18
Filing date: 2023-01-18
Publication date: 2023-09-22
Anticipated expiration: 2033-01-18

Abstract

The utility model discloses a mechanical distance limiting device of a hydraulic machine, which belongs to the field of hydraulic machines and comprises a guide rod, wherein one end of the guide rod is connected with a rocker arm, the rocker arm is connected with a handle, the guide rod is connected with a connecting rod through a collision block, one end of the connecting rod is connected with one end of a screw rod, and a sliding block is sleeved on the screw rod. The sliding block moves upwards, the upper limiting collision block collides with the collision arm through the guide sleeve, and the motion of the collision arm stops the reversing valve at the middle position through the pull rod, so that the sliding block stops. The lower limiting bump block downwards drives the bump arm to reset along with the slide block and the guide rod, the reverse motion of the bump arm enables the reversing valve to stop at the middle position through the pull rod, and the slide block stops. The utility model well controls the limit of mechanical displacement when the hydraulic machine works, and ensures the working effect and efficiency of the hydraulic machine.

Description

Mechanical distance limiting device of hydraulic press

Technical Field

The utility model relates to the field of hydraulic presses, in particular to a mechanical distance limiting device of a hydraulic press.

Background

Hydraulic presses are machines made according to pascal principle for transferring energy to realize various processes, with liquids as working medium. The hydraulic machine generally comprises a machine, a power system and a hydraulic control system. The hydraulic machines are classified into valve hydraulic machines, liquid hydraulic machines and engineering hydraulic machines. The principle of the hydraulic pressure driving machine is that the hydraulic pressure driving machine is manufactured by using Pascal's law, and the hydraulic pressure driving machine is of various types. Of course, the applications are also various as required. There are two main types, i.e. oil presses and hydraulic presses, according to the type of liquid that is to be transferred. The total pressure generated by the hydraulic press is large and is commonly used for forging and stamping. The forging hydraulic press is divided into a die forging hydraulic press and a free forging hydraulic press. The die forging hydraulic press needs a die, and the free forging hydraulic press does not need a die. The first ten thousand ton hydraulic press manufactured in China is a free forging hydraulic press. Hydraulic presses are machines that use liquid as the working medium for transferring energy to achieve various processes. The hydraulic press can be used for correcting, press fitting, packaging, briquetting, pressing plates and the like besides being used for forging and forming. The hydraulic press comprises a hydraulic press and an oil press. The hydraulic press using water-based liquid as working medium and the oil hydraulic press using oil as working medium.

When the existing hydraulic machine works, the limitation on mechanical displacement cannot be made, and the working effect and efficiency of the hydraulic machine are affected.

Disclosure of Invention

In view of the problems of the prior art, an object of the present utility model is to provide a mechanical stroke limiter for a hydraulic machine, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a mechanical distance limiting device of a hydraulic machine comprises a guide rod, one end of the guide rod is connected with a rocker arm, the rocker arm is connected with a handle, the guide rod is connected with a connecting rod through a collision block, the connecting rod is connected with one end of a screw rod, and a sliding block is sleeved on the screw rod.

As a further scheme of the utility model: the outer wall of the connecting rod is provided with a gasket.

As a further scheme of the utility model: the other end of the screw rod is provided with an end cover.

As still further aspects of the utility model: the handle is fixedly arranged on the rocker arm through a slotted long cylinder end set screw.

As still further aspects of the utility model: one end of the guide rod is connected with the rocker arm through the thin teeth of the hexagonal thin nut.

Compared with the prior art; the beneficial effects of the utility model are as follows: the sliding block moves upwards, the upper limiting collision block collides with the collision arm through the guide sleeve, and the motion of the collision arm stops the reversing valve at the middle position through the pull rod, so that the sliding block stops. The lower limiting bump block downwards drives the bump arm to reset along with the slide block and the guide rod, the reverse motion of the bump arm enables the reversing valve to stop at the middle position through the pull rod, and the slide block stops. The utility model well controls the limit of mechanical displacement when the hydraulic machine works, and ensures the working effect and efficiency of the hydraulic machine.

Drawings

Fig. 1 is a schematic structural view of a mechanical distance limiting device of a hydraulic machine.

In the figure: 11. hexagonal thin nut thin teeth; 12. a handle; 13. a set screw is tightly fixed at the end of the slotted long cylinder; 14. a rocker arm; 15. a guide rod; 16. a bump; 17. a connecting rod; 18. a gasket; 19. a screw rod; 20. a slide block; 21. an end cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "provided," "connected," and "connected" are to be construed broadly; for example, the connection may be fixed connection, detachable connection, or integral connection, mechanical connection, electrical connection, direct connection, indirect connection via an intermediate medium, or communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, a mechanical distance limiting device of a hydraulic machine comprises a guide rod 15, one end of the guide rod 15 is connected with a rocker arm 14 through a hexagonal thin nut thread 11, a handle 12 is fixedly arranged on the rocker arm 14 through a slotted long cylindrical end set screw 13, and the handle 12 and the rocker arm 14 rotate during operation, so that the guide rod 15 is conveniently driven to move, the use of the device is facilitated, and the safety is ensured.

The guide rod 15 is connected with the connecting rod 17 through the collision block 16, the connecting rod 17 is connected with one end of the screw rod 19, the screw rod 19 is sleeved with the sliding block 20, the other end of the screw rod 19 is provided with the end cover 21, the end cover 21 is beneficial to protection, the end cover 21 prevents the collision block 16 from sliding out, the safety is ensured, and the use of the device is convenient.

The outer wall of the connecting rod 17 is provided with a gasket 18, the gasket 18 ensures air tightness, the use of the device is convenient, and the safety is ensured.

The guide rod moves along with the sliding block, and the upper limit bump block and the lower limit bump block are adjustable on the guide rod.

Upper limit: the sliding block moves upwards, the upper limiting collision block collides with the collision arm through the guide sleeve, and the motion of the collision arm stops the reversing valve at the middle position through the pull rod, so that the sliding block stops.

And (3) lower limit: the lower limiting bump block downwards drives the bump arm to reset along with the slide block and the guide rod, the reverse motion of the bump arm enables the reversing valve to stop at the middle position through the pull rod, and the slide block stops.

Limiting and adjusting on the sliding block: the handle is moved downwards to enable the sliding block to descend, then the screw is loosened, the upper limit bump is moved, and after the adjustment is finished, the screw is screwed down.

And (3) lower limit adjustment of the sliding block: the handle is rotated in a rocking way, the screw rod rotates, the lower limiting bump block moves up and down, the handle rotates in a rotating way, and the lower limiting bump block moves by 5mm.

As would be apparent to one skilled in the art; it is obvious that the utility model is not limited to the details of the above-described exemplary embodiments; and without departing from the spirit or essential characteristics of the utility model; the utility model can be embodied in other specific forms. Thus, the method comprises the steps of; from either point of view; the embodiments should be considered as exemplary; and is non-limiting; the scope of the utility model is indicated by the appended claims rather than by the foregoing description; it is therefore intended to include within the utility model all changes that fall within the meaning and range of equivalency of the claims. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it is provided that; it should be understood that; although the present description describes embodiments; but not every embodiment contains only one independent technical solution; this manner of description is for clarity only; the skilled artisan should recognize the specification as a whole; the technical solutions in the embodiments may also be combined appropriately; forming other embodiments as will be appreciated by those skilled in the art.

Claims

1. The mechanical distance limiting device of the hydraulic machine is characterized by comprising a guide rod (15), one end of the guide rod (15) is connected with a rocker arm (14), the rocker arm (14) is connected with a handle (12), the guide rod (15) is connected with a connecting rod (17) through a collision block (16), the connecting rod (17) is connected with one end of a screw rod (19), and a sliding block (20) is sleeved on the screw rod (19).

2. The mechanical stroke device of a hydraulic machine according to claim 1, wherein the outer wall of the connecting rod (17) is provided with a gasket (18).

3. The mechanical stroke device of the hydraulic machine according to claim 2, wherein the other end of the screw rod (19) is provided with an end cover (21).

4. A hydraulic machine mechanical distance limiting device according to claim 3, characterized in that the handle (12) is fixedly arranged on the rocker arm (14) by means of a slotted long cylindrical end set screw (13).

5. The mechanical stroke device for hydraulic press according to claim 4, wherein one end of the guide rod (15) is connected with the rocker arm (14) through the hexagonal thin nut thread (11).