High-pressure hydraulic machine

Abstract

The high-pressure hydraulic machine relates to the technical field of hydraulic machines and comprises a hydraulic machine set and a pump set, the pump set is located at the top end of the hydraulic machine set, and a protective support used for climbing to the top end of the hydraulic machine set is arranged at the upper end of the left side or the right side or the rear side of the hydraulic machine set. And the lower end of the protective bracket is detachably connected with a crawling ladder. The pump set is fixed to the top of the hydraulic unit, so that the pump set and the hydraulic unit are in close fit, meanwhile, the occupied area of the pump set is reduced, and the purposes of improving the field utilization rate and improving the hydraulic control performance are achieved.

Description

Technical Field

[0001] This application relates to the technical field of hydraulic presses, and particularly relates to a high-pressure hydraulic press. Background Art

[0002] A hydraulic press is a commonly used forging and pressing equipment in the existing machinery industry. It is often used in pressing processes and press-forming processes, such as forging, stamping, cold extrusion, straightening, bending, flanging, sheet metal drawing, powder metallurgy, press fitting, edge wrapping, etc. It is a forging and pressing equipment that uses liquid as the working medium and is made according to Pascal's law to utilize liquid pressure transmission to achieve various processes. Hydraulic presses are also widely used to detect whether the strength of products such as cement is qualified.

[0003] Chinese Patent with Publication No. CN113183507B discloses a down-mounted hydraulic press. The down-mounted hydraulic press includes a column frame, a lower beam frame, and a movable upper beam; at the four end corners of the lower beam frame corresponding to the movable upper beam, lifting cylinders for pushing the movable upper beam to lift are respectively vertically and fixedly arranged, and the bottom end corners of the movable upper beam are respectively connected to the corresponding lifting cylinders; a movable middle beam is arranged on the column frame above the lower beam frame, and a plurality of main power cylinders for pushing the movable middle beam to lift are evenly and vertically arranged at the bottom of the movable middle beam within the lower beam frame; a fuel tank, a hydraulic pump station, and a total control cabinet for controlling and driving the operation of the hydraulic press are arranged on one side of the lower beam frame; a clamping mechanism for fixing the lifting position of the movable upper beam and a guiding mechanism for guiding the lifting of the movable upper beam are respectively arranged between the movable upper beam and the column frame.

[0004] However, this down-mounted hydraulic press has problems such as an increased floor area occupation, a long connection and drive path between the hydraulic pump station and the lifting cylinders, and insufficient hydraulic control performance by fixing the hydraulic pump station on one side of the lower beam frame, which needs to be improved. Utility Model Content

[0005] In view of this, the purpose of this application is to provide a high-pressure hydraulic press to achieve the purpose of improving the floor space utilization rate and hydraulic control performance. The specific scheme is as follows:

[0006] A high-pressure hydraulic press includes a hydraulic unit and a pump unit. The pump unit is located at the top of the hydraulic unit. A protective bracket for climbing to the top of the hydraulic unit is arranged on the upper end of the left side, right side, or rear side of the hydraulic unit, and a climbing ladder is detachably connected to the lower end of the protective bracket.

[0007] Preferably, the hydraulic unit includes a base for fixing the lower die, a connecting seat for supporting the pump unit, and a plurality of columns respectively connected and fixed to the base and the connecting seat at both ends. An elevating platform for the plurality of columns to penetrate and be limited up and down is arranged between the base and the connecting seat. A hydraulic cylinder vertically inserted into the connecting seat and drivingly connected to the elevating platform up and down is arranged, and the hydraulic cylinder is connected to the pump unit.

[0008] Preferably, the protective bracket is hollow and square or circular, and is provided with a fixed ladder connected and fixed to the connecting seat. The fixed ladder is provided with a plurality of cross bars equally spaced in the vertical direction, and a connecting hook matching the cross bar is arranged at the top end of the climbing ladder.

[0009] Preferably, the cross bar includes a connecting bottom bar at the bottom and a plurality of cross ladder bars equally spaced at the upper end of the connecting bottom bar. When the connecting hook is connected to the connecting bottom bar in a matching manner, the climbing ladder is inclined. When the connecting hook is connected to the cross ladder bar at the bottom in a matching manner, the climbing ladder is vertical and the bottom contacts the ground.

[0010] Preferably, a connecting strengthening column connected to the outer side wall of the connecting seat is arranged on one side of the fixed ladder facing the hydraulic unit, and a guardrail handrail is connected to the upper end. The bottom of the guardrail handrail is connected and fixed to the top of the connecting seat, and a connecting column for mutual connection is arranged between the guardrail handrail and the fixed ladder.

[0011] Preferably, a surrounding ring is arranged at the top end of the connecting seat, and both ends of the surrounding ring are connected to the left and right sides of the guardrail handrail.

[0012] Through the above solutions, the present application provides a high-pressure hydraulic press, and the high-pressure hydraulic press has the following beneficial effects:

[0013] 1. By fixing the pump unit on the top of the hydraulic unit, the pump unit and the hydraulic unit are closely matched while reducing the floor area of the pump unit, so as to achieve the purpose of improving the site utilization rate and hydraulic control performance;

[0014] 2. The combined climbing and safe climbing effects of disassembly and assembly are realized through the protective bracket and the climbing ladder;

[0015] 3. The operation safety of the staff when maintaining the pump unit at the top of the hydraulic unit is improved through the combination of the guardrail handrail and the surrounding ring. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the provided accompanying drawings.

[0017] Figure 1 Structural schematic diagram of the high-pressure hydraulic press disclosed in the present application;

[0018] Figure 2 is Figure 1 Enlarged structural schematic diagram of part A in

[0019] Figure 3 is Figure 1 Enlarged structural schematic diagram of part B in

[0020] Explanation of reference numerals: 1, base; 2, column; 3, connecting seat; 4, lifting platform; 5, hydraulic cylinder; 6, pump unit; 7, climbing ladder; 71, connecting hook; 8, protective bracket; 81, fixed ladder; 811, horizontal ladder rod; 812, connecting bottom rod; 813, connecting strengthening column; 82, guardrail handrail; 821, connecting column. Specific implementation manners

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application. Embodiment

[0022] As Figure 1 shown, a high-pressure hydraulic press includes a hydraulic unit and a pump unit 6. The hydraulic unit realizes the mold opening and closing method through hydraulic drive to achieve stable drive operation during the drive of the pump unit 6. Among them, the hydraulic unit includes a base 1 for fixing the lower mold, a connecting seat 3 for supporting the pump unit 6, and multiple columns 2 with both ends respectively connected and fixed to the base 1 and the connecting seat 3. A lifting platform 4 for the upper and lower penetration and limitation of the multiple columns 2 is arranged between the base 1 and the connecting seat 3, and a hydraulic cylinder 5 that is vertically inserted into the connecting seat 3 and is drivingly connected to the lifting platform 4 up and down is provided.

[0023] It should be noted that in the first embodiment of the present application, the pump unit 6 is located at the top of the hydraulic unit. The hydraulic cylinder 5 is connected to the pump unit 6 so that the hydraulic cylinder 5 located on the connecting seat 3 and the pump unit 6 maintain a connection driving structure within a short distance, thereby achieving the purpose of improving the site utilization rate while effectively enhancing the hydraulic control performance. At the same time, in order to achieve efficient maintenance and repair of the pump unit 6, a protective bracket 8 for climbing to the top of the hydraulic unit is provided at the upper end of the left side, right side or rear side of the hydraulic unit, and a climbing ladder 7 is detachably connected to the lower end of the protective bracket 8. Therefore, the detachable climbing body plays a role in avoiding the safety risks caused by personnel climbing to the connecting seat 3 when the pump unit 6 is in use.

[0024] As Figure 1 , Figure 2 shown, the protective bracket 8 is in the shape of a hollow square or circle, and is provided with a fixed ladder 81 connected and fixed to the connecting seat 3. A plurality of cross bars are arranged on the fixed ladder 81 at equal intervals in the vertical direction. At the same time, a connecting hook 71 matching the cross bar is provided at the top of the climbing ladder 7.

[0025] It should be noted that the cross bar includes a connecting bottom bar 812 at the bottom and a plurality of cross ladder bars 811 equally spaced at the upper end of the connecting bottom bar 812. When the connecting hook 71 is connected to the connecting bottom bar 812 in a matching manner, the climbing ladder 7 is inclined so that the staff can climb upward to the fixed ladder 81 through the inclined climbing ladder 7. When the connecting hook 71 is connected to the cross ladder bar 811 at the bottom in a matching manner, the climbing ladder 7 is vertical and the bottom contacts the ground. Since there is no stable supporting force between the bottom of the climbing ladder 7 and the ground at this time, it will be difficult for the staff to climb to the fixed ladder 81 through the climbing ladder 7. If the connecting hook 71 on the climbing ladder 7 is further connected to the cross ladder bar 811 at a further elevated position, the climbing ladder 7 will be in a suspended state, improving the storage effect of the climbing ladder 7 while improving the safety performance of the use of this high-pressure hydraulic press.

[0026] As Figure 1 , Figure 3 shown, on the side of the fixed ladder 81 facing the hydraulic unit, a connecting strengthening column 813 connected to the outer wall of the connecting seat 3 is provided, and a guardrail handrail 82 is connected to the upper end of the fixed ladder 81. The bottom of the guardrail handrail 82 is connected and fixed to the top of the connecting seat 3, thus ensuring the structural stability and use strength of the guardrail handrail 82. And a connecting column 821 is provided between the guardrail handrail 82 and the fixed ladder 81, so that the connecting column 821 effectively strengthens the connection between the guardrail handrail 82 and the fixed ladder 81. Embodiment

[0027] The difference between the second embodiment and the first embodiment is that a surrounding ring is provided at the top of the connecting seat 3 in the second embodiment. The surrounding ring is in the shape of a grid, so as to completely surround the hydraulic cylinder 5 and the pump unit 6 at the top of the connecting seat 3. After the staff climbs onto the connecting seat 3, the surrounding ring protects the staff safely. The bottom of the surrounding ring is fixedly connected to the connecting seat 3, and both ends are connected to the left and right sides of the guardrail handrail 82.

[0028] In summary, the present application provides a high-pressure hydraulic press. First, by fixing the pump unit 6 on the top of the hydraulic unit, the pump unit 6 and the hydraulic unit form a tight fit while reducing the floor area of the pump unit 6, so as to achieve the purpose of improving the site utilization rate and hydraulic control performance. Secondly, the combined use of the protective bracket 8 and the climbing ladder 7 realizes the effect of safe climbing for combination climbing and disassembly and assembly. At the same time, the combination of the guardrail handrail 82 and the surrounding ring improves the operation safety of the staff when maintaining the pump unit 6 on the top of the hydraulic unit.

[0029] The "first", "second", "third", "fourth", etc. (if any) involved in the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method or device comprising a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods or devices.

[0030] It should be noted that the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0031] Specific examples are used in this article to elaborate on the principles and implementation manners of the present application. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A high-pressure hydraulic press, comprising a hydraulic unit and a pump unit (6), characterized in that: The pump unit (6) is located at the top of the hydraulic unit, and a protective bracket (8) for climbing to the top of the hydraulic unit is provided at the upper end of the left side, right side or rear side of the hydraulic unit, and a climbing ladder (7) is detachably connected to the lower end of the protective bracket (8).

2. A high pressure hydraulic press according to claim 1, characterized in that: The hydraulic unit comprises a base (1) for fixing a lower die, a connecting seat (3) for supporting the pump unit (6), and a plurality of columns (2) whose two ends are respectively connected and fixed to the base (1) and the connecting seat (3); a lifting platform (4) for the plurality of columns (2) to pass through and limit the position up and down is provided between the base (1) and the connecting seat (3); a hydraulic cylinder (5) connected to the lifting platform (4) for driving up and down is plugged into the connecting seat (3) in a vertical direction; the hydraulic cylinder (5) is connected to the pump unit (6).

3. A high pressure hydraulic press according to claim 2, characterized in that: The protective support (8) is in a hollow square or circular shape and is provided with a fixed ladder (81) connected and fixed to the connecting seat (3); the fixed ladder (81) is provided with a plurality of cross bars distributed at equal intervals in the vertical direction; and the top end of the climbing ladder (7) is provided with a connecting hook (71) matching the cross bar.

4. A high pressure hydraulic press according to claim 3, characterized in that: The cross bar comprises a connecting bottom bar (812) located at the bottom and a plurality of horizontal ladder bars (811) located at an equal distance from each other at the upper end of the connecting bottom bar (812); when the connecting hook (71) is matched and connected with the connecting bottom bar (812), the climbing ladder (7) is inclined; when the connecting hook (71) is matched and connected with the horizontal ladder bar (811) located at the bottom, the climbing ladder (7) is vertical and the bottom is in contact with the ground.

5. A high pressure hydraulic press according to claim 3, characterized in that: A connection reinforcement column (813) connected to the outer wall of the connection seat (3) is arranged on the side of the fixed ladder (81) facing the hydraulic unit, and a guardrail handrail (82) is connected to the upper end. The bottom of the guardrail handrail (82) is connected and fixed to the top of the connection seat (3), and a connection column (821) connected to each other is arranged between the guardrail handrail (82) and the fixed ladder (81).

6. A high pressure hydraulic press according to claim 5, characterized in that: A surrounding ring is provided at the top end of the connecting seat (3), and two ends of the surrounding ring are connected to the left and right sides of the guardrail handrail (82).

Images