Rapid overhauling device for prefill valve of rapid forging machine

Abstract

The utility model discloses a fast forging machine prefill valve fast maintenance device, including external hydraulic control subassembly, observation window structure, support tube, valve core position observation rod and prefill valve, the observation window structure is columnar, and the center is through hole, the side wall of observation window structure is provided with observation window, the lower end of observation window structure is connected with support tube, the center of support tube is provided with mounting hole, and the valve core position observation rod is connected with the prefill valve. The supporting pipe is connected to the elbow in a sealed mode and inserted into an inner cavity of the elbow in a penetrating mode, the prefill valve is arranged at the joint of the elbow and the other oil pipe, the valve element position observation rod is arranged in the through hole and the installation hole, the external hydraulic control assembly is arranged at the upper end of the observation window structure, and the output end of the external hydraulic control assembly extends into the through hole to be connected with the valve element position observation rod. The lower end of the spool position observation rod is connected with the prefill valve. The position and the motion state of the valve element position observation rod are observed through the observation window of the observation window structure, so that the working state of the prefill valve at the moment is determined, whether the prefill valve breaks down or not is judged conveniently, and the external hydraulic control assembly facilitates disassembly, assembly and overhaul of an oil way of the fast forging machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic machine overhauls structure technical field, concretely relates to a quick forging machine liquid filling valve quick overhauls device. BACKGROUND

[0002] The quick forging hydraulic machine is short for quick forging machine, and is widely applied to open die forging, and the characteristics are fast forging speed, fast response speed, fast speed under no load descending and returning. Among repeated loading and unloading reciprocating motion, the liquid filling valve is one of the core components of the whole press machine to realize quick forging.

[0003] At present, the friction between the valve core and the valve body in the use process of the liquid filling valve can cause the size, shape and surface quality of the part to change, so as to cause the valve core position of the liquid filling valve to deviate and other faults. If the liquid filling valve position deviates, it can cause cavitation phenomenon, and can cause damage to other components. Secondly, the position deviation can cause pressure pulsation, affect the stability and performance of the hydraulic system, and can cause the components to produce noise, vibration and aggravate wear. In addition, the liquid filling valve position deviation can also affect the system response, and can cause the response to the control input to be too sensitive or unstable.

[0004] However, due to the complexity of the quick forging machine oil circuit, and the liquid filling valve is located in the pipeline, it is not conducive to observe or overhaul the use of the liquid filling valve.

[0005] Therefore, an urgent need exists for a quick forging machine liquid filling valve quick overhauls device to solve the problem of inconvenient observation or overhaul of the use of the liquid filling valve. Utility model content

[0006] The utility model provides a quick forging machine liquid filling valve quick overhauls device to solve the problem of inconvenient observation or overhaul of the use of the liquid filling valve in view of the deficiency in the prior art.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] The application discloses a quick maintenance device for a liquid filling valve of a quick forging machine, and has the characteristics that the device comprises an external hydraulic control assembly, an observation window structure, a support pipe, a valve core position observation rod and a liquid filling valve; the observation window structure is in a columnar shape and has a through hole penetrating from top to bottom in the center; an observation window is arranged on the side wall of the observation window structure and communicates with the through hole; the lower end of the observation window structure is connected with the support pipe; the center of the support pipe is provided with a mounting hole penetrating from top to bottom and communicating with the through hole; the support pipe is sealingly connected with the side wall of the elbow and penetrates into the inner cavity of the elbow; the liquid filling valve is arranged at the position where the elbow is connected with another oil pipe; the valve core position observation rod is slidingly arranged in the through hole and the mounting hole; the external hydraulic control assembly is arranged at the upper end of the observation window structure and has an output end extending into the through hole and connected with the upper end of the valve core position observation rod, so as to drive the valve core position observation rod to move up and down; and the lower end of the valve core position observation rod is connected with the liquid filling valve.

[0009] In order to optimize the above technical scheme, the specific measures taken further include:

[0010] Further, the external hydraulic control assembly comprises a piston, a piston rod and a cylinder body, the cylinder body is arranged at the upper end of the observation window structure, the piston rod is slidingly arranged in the cylinder body, the lower end of the piston rod is sealingly inserted into the through hole of the observation window structure and connected with the upper end of the valve core position observation rod, the upper end of the piston rod is provided with the piston, the piston is slidingly arranged in the cylinder body and sealingly attached to the inner wall of the cylinder body, the side walls above and below the cylinder body are respectively provided with hydraulic control ports for driving the piston to drive the piston rod to move up and down.

[0011] Further, the external hydraulic control assembly further comprises a gland, the bottom end of the cylinder body is sealingly connected with the gland, the gland is provided with an opening through which the piston rod passes, and the lower end of the piston rod extends into the through hole of the observation window structure through the opening.

[0012] Further, the external hydraulic control assembly further comprises a round nut, the piston is sleeved on the upper end of the piston rod and detachably fixed by the round nut.

[0013] Further, the cylinder body is connected with the upper end of the observation window structure through a flange plate.

[0014] Further, the observation window can be provided with a transparent protective cover.

[0015] Further, the inner diameter of the through hole in the observation window structure is greater than the outer diameter of the valve core position observation rod.

[0016] Further, a scale is arranged on the valve core position observation rod.

[0017] Further, a guide sleeve is arranged at the upper end of the support pipe, and the guide sleeve is provided with a guide hole through which the valve core position observation rod passes.

[0018] Further, the liquid filling valve comprises a valve core and a valve body, the elbow is connected with the end of another oil pipe through butt flanges, the valve body is arranged between the butt flanges, and the valve core is arranged in the valve body.

[0019] The utility model discloses the beneficial effects are:

[0020] The utility model discloses the beneficial effects are: DRAWINGS

[0021] Figure 1 It is the whole structure schematic diagram of the quick maintenance device for the liquid filling valve of the quick forging machine that the utility model provides.

[0022] Figure 2 It is the scale setting schematic diagram of the quick maintenance device for the liquid filling valve of the quick forging machine that the utility model provides.

[0023] Sign significance: 1 - external liquid control component, 2 - liquid filling valve, 3 - round nut, 4 - piston, 5 - piston rod, 6 - cylinder body, 7 - gland, 8 - observation window, 9 - guide sleeve, 10 - support pipe, 11 - valve core position observation rod, 12 - elbow, 13 - valve core, 14 - valve body, 15 - butt flange. SPECIFIC IMPLEMENTATION

[0024] The utility model discloses the beneficial effects are:

[0025] As attached Figure 1The utility model discloses a kind of quick maintenance devices of liquid filling valve of fast forging machine shown in the embodiment of the utility model, including external hydraulic control assembly 1, observation window structure, support pipe 10, valve core position observation rod 11 and liquid filling valve 2, observation window structure is columnar, and center is the through hole of up and down penetration, the side wall of observation window structure is equipped with the observation window 8 being communicated with through hole, the lower end of observation window structure is connected support pipe 10, the center of support pipe 10 is equipped with the mounting hole being communicated with through hole up and down penetration, support pipe 10 is sealingly connected in the side wall of elbow 12, and it is inserted into the inner chamber of elbow 12, liquid filling valve 2 is arranged at elbow 12 and another oil pipe connection, valve core position observation rod 11 can be slidably set in through hole and mounting hole, external hydraulic control assembly 1 is set in the upper end of observation window structure, and output end is inserted into through hole and connects the upper end of valve core position observation rod 11, for driving its up and down movement, the lower end of valve core position observation rod 11 is connected with liquid filling valve 2.

[0026] The utility model discloses a kind of quick maintenance devices of liquid filling valve of fast forging machine shown in the embodiment of the utility model, including external hydraulic control assembly 1, observation window structure, support pipe 10, valve core position observation rod 11 and liquid filling valve 2, observation window structure is columnar, and center is the through hole of up and down penetration, the side wall of observation window structure is equipped with the observation window 8 being communicated with through hole, the lower end of observation window structure is connected support pipe 10, the center of support pipe 10 is equipped with the mounting hole being communicated with through hole up and down penetration, support pipe 10 is sealingly connected in the side wall of elbow 12, and it is inserted into the inner chamber of elbow 12, liquid filling valve 2 is arranged at elbow 12 and another oil pipe connection, valve core position observation rod 11 can be slidably set in through hole and mounting hole, external hydraulic control assembly 1 is set in the upper end of observation window structure, and output end is inserted into through hole and connects the upper end of valve core position observation rod 11, for driving its up and down movement, the lower end of valve core position observation rod 11 is connected with liquid filling valve 2.

[0027] In the present scheme, observation window 8 can be directly provided as an open hole structure, which only needs to be convenient for observation.

[0028] In the above-mentioned specific embodiment, external hydraulic control assembly 1 includes piston 4, piston rod 5 and cylinder body 6, cylinder body 6 is installed at the upper end of observation window structure, piston rod 5 is slidably arranged in cylinder body 6, the lower end of piston rod 5 is sealingly inserted into the through hole of observation window structure and connected with the upper end of valve core position observation rod 11, piston 4 is installed at the upper end of piston rod 5, piston 4 is slidably arranged inside cylinder body 6, and is sealingly attached to the inner wall of cylinder body 6, the side wall above and below piston 4 of cylinder body 6 is respectively provided with hydraulic control port, for driving piston 4 to drive piston rod 5 to move up and down.

[0029] In further embodiments, the external hydraulic control assembly 1 further comprises a gland 7, the bottom end of the cylinder body 6 is sealingly connected with the gland 7, the middle of the gland 7 is provided with an opening through which the piston rod 5 passes, and the lower end of the piston rod 5 extends into the through hole of the observation window structure after passing through the opening.

[0030] In further embodiments, the cylinder body 6 is connected to the upper end of the observation window structure through a flange plate.

[0031] In another specific embodiment based on the above, the observation window 8 can be provided with a transparent protective cover. In this way, protective measures are increased.

[0032] In another specific embodiment based on the above, the inner diameter of the through hole in the observation window structure is greater than the outer diameter of the valve core position observation rod 11. In this way, the valve core position observation rod 11 can have sufficient observation space.

[0033] As shown in the accompanying drawings, Figure 2 In another specific embodiment based on the above, the valve core position observation rod 11 is provided with a scale. In this way, it is convenient to confirm the use state of the valve core position observation rod 11.

[0034] In another specific embodiment based on the above, the upper end of the support pipe 10 is provided with a guide sleeve 9, and the middle of the guide sleeve 9 is provided with a guide hole through which the valve core position observation rod 11 passes.

[0035] In another specific embodiment based on the above, the liquid filling valve 2 comprises a valve core 13 and a valve body 14, the elbow 12 is connected to the end of another oil pipe through a butt flange 15, the valve body 14 is arranged between the butt flanges 15, the valve core 13 is arranged in the valve body 14, and the lower end of the valve core position observation rod 11 is connected to the upper end of the valve core 13.

[0036] When the device is in a liquid filling state, the hydraulic oil enters the cylinder body 6 through the hydraulic control port to drive the piston 4, the piston rod 5, the valve core position observation rod 11 and the valve core 13 to move downward, and vice versa when the device is closed. At this time, the movement state of the valve core position observation rod 11 can be clearly observed through the observation window 8, so as to confirm the position state of the valve core 13.

[0037] It should be noted that the terms such as "upper", "lower", "left", "right", "front", "back" and the like cited in the utility model are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship is also considered as the scope of the utility model without substantial change of the technical content.

[0038] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical scheme belonging to the idea of the utility model belongs to the protection scope of the utility model. It should be pointed out that, for ordinary skilled persons in the art, some improvements and decorations without departing from the principle of the utility model are considered as the protection scope of the utility model.

Claims

1. A rapid maintenance device for a high-speed forging machine filling valve, characterized by: The invention comprises an external hydraulic control component (1), an observation window structure, a support tube (10), a valve core position observation rod (11) and a filling valve (2), wherein the observation window structure is columnar and has a through hole extending vertically in the center. The side wall of the observation window structure is provided with an observation window (8) connected to the through hole. The lower end of the observation window structure is connected to the support tube (10). The center of the support tube (10) is provided with a mounting hole extending vertically in the through hole. The support tube (10) is sealed and connected to the side wall of the elbow (12) and is inserted into the inner cavity of the elbow (12). The filling valve (2) is provided at the connection between the elbow (12) and another oil pipe. The valve core position observation rod (11) can be slidably provided in the through hole and the mounting hole. The external hydraulic control component (1) is provided at the upper end of the observation window structure, and the output end extends into the through hole to connect to the upper end of the valve core position observation rod (11) for driving it to move up and down. The lower end of the valve core position observation rod (11) is connected to the filling valve (2).

2. A rapid maintenance device for a high-speed forging machine filling valve according to claim 1, characterized in that: The external hydraulic control assembly (1) includes a piston (4), a piston rod (5) and a cylinder body (6), wherein the cylinder body (6) is mounted on the upper end of the observation window structure, and the piston rod (5) is slidably arranged in the cylinder body (6) up and down, and the lower end of the piston rod (5) is sealed and inserted into the through hole of the observation window structure and connected to the upper end of the valve core position observation rod (11), and the upper end of the piston rod (5) is mounted with a piston (4), and the piston (4) is slidably arranged in the cylinder body (6) up and down, and is sealed and fitted with the inner wall of the cylinder body (6), and the side walls of the cylinder body (6) located above and below the piston (4) are respectively provided with hydraulic control ports for driving the piston (4) to drive the piston rod (5) to move up and down.

3. A rapid maintenance device for a high-speed forging machine filling valve according to claim 2, characterized in that: The external hydraulic control assembly (1) further comprises a gland (7), the bottom end of the cylinder body (6) being sealedly connected to the gland (7), an opening for the piston rod (5) to pass through being provided in the middle of the gland (7), and the lower end of the piston rod (5) passing through the opening and then extending into the through hole of the observation window structure.

4. A rapid maintenance device for a high-speed forging machine filling valve according to claim 2, characterized in that: The external hydraulic control assembly (1) further comprises a round nut (3), and the piston (4) is sleeved on the upper end of the piston rod (5) and is detachably fixed by the round nut (3).

5. A rapid maintenance device for a high-speed forging machine filling valve according to claim 2, characterized in that: The cylinder body (6) is connected to the upper end of the observation window structure via a flange.

6. A rapid maintenance device for a high-speed forging machine filling valve according to claim 1, characterized in that: The observation window (8) may be provided with a transparent protective cover.

7. A rapid maintenance device for a high-speed forging machine filling valve according to claim 1, characterized in that: The inner diameter of the through hole in the observation window structure is larger than the outer diameter of the valve core position observation rod (11).

8. The rapid maintenance device for the liquid filling valve of a high-speed forging machine according to claim 1, characterized in that: The valve core position observation rod (11) is provided with a scale.

9. A rapid maintenance device for a high-speed forging machine filling valve according to claim 1, characterized in that: A guide sleeve (9) is installed at the upper end of the support tube (10), and a guide hole is provided in the middle of the guide sleeve (9) for the valve core position observation rod (11) to pass through.

10. A rapid maintenance device for a high-speed forging machine filling valve according to claim 1, characterized in that: The filling valve (2) comprises a valve core (13) and a valve body (14); the elbow (12) is connected to the end of another oil pipe via a docking flange (15); the valve body (14) is arranged between the docking flanges (15); the valve core (13) is arranged in the valve body (14); and the lower end of the valve core position observation rod (11) is connected to the upper end of the valve core (13).

Images