Gas distribution structure of screw press

Abstract

The utility model relates to an air distribution structure of a screw press, and belongs to the field of screw presses. The screw rod is rotationally connected to the rack; the inflating seat is coaxially and fixedly connected to the outer part of the screw rod, and the inflating seat is connected with the air cylinder and synchronously rotates with the screw rod; the gas distribution seat is connected with the rack; the air distribution seat coaxially sleeves the outer part of the air inflation seat, and the air inflation seat is rotationally connected with the air distribution seat; the air inflation channel comprises a fixed channel formed in the air distribution seat and a rotary channel formed in the air inflation seat; the fixed channel is connected with the rotating channel which is communicated with a cavity of the air cylinder. The sealing rubber rings are located between the air distribution seat and the air inflation seat, and the sealing rubber rings are located on the two sides of the connecting position of the fixed channel and the rotating channel correspondingly; and the inflation channel is sealed by a plurality of sealing rubber rings. The air inflation device has the effects that the sealing performance of the air inflation channel is enhanced, and the possibility that lubricating oil enters the air inflation channel is reduced.

Description

Technical Field

[0001] The present application relates to the field of screw presses, and in particular to a gas distribution structure for a screw press. Background Art

[0002] A screw press is a forging machine that uses a screw and a nut as an actuator and relies on a screw pair to convert the forward and reverse rotational motion of the flywheel into the up and down reciprocating motion of the slider.

[0003] In the existing clutch type screw press, the screw is provided with a friction disc, the friction disc is located above the flywheel, and the clutch cylinder is located above the friction disc. The flywheel and the friction disc can be moved synchronously or individually by adjusting the pressure of the clutch cylinder. The charging device inflates the cylinder through the gas distribution structure. The gas distribution structure includes a gas distribution seat fixed to the frame and an inflation seat sleeved on the outside of the screw. The gas distribution seat and the inflation seat are rotatably connected through a bearing. The mounting groove of the bearing is sealed, and a large amount of lubricating oil is stored in the mounting groove. The gas distribution seat and the inflation seat are jointly provided with an inflation channel. The gas distribution seat is connected to the inflation device. The inflation device transmits gas to the cylinder through the inflation channel of the gas distribution seat to achieve pressure regulation of the cylinder.

[0004] With regard to the above-mentioned related technologies, the rotational connection between the valve seat and the inflation seat may cause air leakage in the inflation channel. If the sealing of the inflation channel is insufficient, the gas in the inflation channel may leak into the mounting groove, so that the air pressure in the mounting groove is balanced with the air pressure in the cylinder. When the pressure in the cylinder is released, the gas in the mounting groove will drive the lubricating oil into the inflation channel, thereby causing channel contamination, and in severe cases, the inflation channel may be blocked. Utility Model Content

[0005] In order to enhance the sealing performance of the inflation channel and reduce the possibility of lubricating oil entering the inflation channel, the present application provides a screw press air distribution structure.

[0006] The present application provides a screw press gas distribution structure adopting the following technical solution:

[0007] A screw press air distribution structure includes a frame;

[0008] A screw rod, the screw rod being rotatably connected to the frame;

[0009] An inflatable seat, the inflatable seat is coaxially fixed to the outside of the screw, the inflatable seat is connected to the cylinder, and rotates synchronously with the screw;

[0010] A gas distribution seat, the gas distribution seat is connected to the frame; the gas distribution seat is coaxially sleeved on the outside of the inflation seat, and the inflation seat is rotatably connected to the gas distribution seat;

[0011] An air charging channel, the air charging channel comprising a fixed channel opened on the air distribution seat and a rotating channel opened on the air charging seat; the fixed channel is connected to the rotating channel, and the rotating channel is connected to the cavity of the cylinder;

[0012] A plurality of sealing rubber rings are located between the gas distribution seat and the inflation seat, and the plurality of sealing rubber rings are respectively located on both sides of the position where the fixed channel is connected to the rotating channel; the plurality of sealing rubber rings seal the inflation channel.

[0013] By adopting the above technical solution, multiple sealing rubber rings seal the inflation channel, improve the sealing connection between the fixed channel and the rotating channel, reduce the possibility of gas leakage from the fixed channel and the rotating channel, and even if gas leakage occurs, reduce the amount of gas entering the installation groove. When the cylinder is deflated, gas and lubricating oil flow into the inflation channel, and the sealing rubber ring will prevent the lubricating oil from leaking into the inflation channel as much as possible, reduce the amount of lubricating oil leakage caused by gas circulation, ensure the cleanliness of the inflation channel, and reduce the possibility of clogging of the inflation channel.

[0014] Optionally, an elastic member is provided on a side of the sealing rubber ring close to the gas distribution seat, and the elastic member applies a force to the sealing rubber ring to approach the inflation seat.

[0015] By adopting the above technical solution, since the sealing rubber ring is located between the rotating body and the fixed body, when the rotating body rotates relative to the fixed body, friction will be generated on the sealing rubber ring, and long-term operation will cause the sealing rubber ring to wear. The elastic member continuously applies force to the sealing rubber ring to approach the inflation seat, ensuring that the sealing rubber ring can continue to abut against the inflation seat even after being worn, further strengthening the sealing of the inflation channel.

[0016] Optionally, a height of a bottom wall of the fixed channel close to one end of the rotating channel is lower than a height of a bottom wall of the rotating channel close to one end of the fixed channel.

[0017] By adopting the above technical solution, when the lubricating oil in the installation groove is brought into the inflation channel under the action of high-pressure gas, the lubricating oil will enter the inflation channel along the gap between the valve seat and the inflation seat. Since the bottom wall of the fixed channel is lower than the bottom wall of the rotating channel, the lubricating oil will accumulate in the fixed channel, thereby reducing the amount of lubricating oil entering the rotating channel, thereby ensuring the smooth flow of the inflation channel.

[0018] Optionally, a plurality of the rotating channels are provided, and all of the plurality of rotating channels are connected to the fixed channel.

[0019] By adopting the above technical solution, multiple rotating channels simultaneously supply air to the cylinder cavity, thereby improving the air intake efficiency of the cylinder cavity and allowing the air pressure in the cylinder to increase rapidly, thereby ensuring normal use of the clutch.

[0020] Optionally, a plurality of the rotating channels are distributed in an array around the axis of the screw.

[0021] By adopting the above technical solution, the array distribution of multiple rotating channels makes the gas entering the cylinder cavity more uniform, ensuring that the piston in the cylinder is subjected to forces in multiple directions, thereby ensuring the smooth sliding of the piston and making the operation of the press smoother.

[0022] Optionally, one end of the rotating channel away from the fixed channel is connected to a hose, and the rotating channel is connected to the cylinder through the hose.

[0023] By adopting the above technical solution, the provision of the hose simplifies the structure of the inflation seat, making the production and processing of the inflation seat simpler; on the other hand, when the valve structure needs to be inspected and cleaned, the hose can be separated from the cylinder body and the inflation seat, making the inspection of the valve structure more convenient.

[0024] Optionally, the rotating channel includes a horizontal portion and a vertical portion, and the hose is connected to the rotating channel at the horizontal portion of the rotating channel.

[0025] By adopting the above technical solution, the connection between the hose and the horizontal part avoids the possibility of the hose connection being separated from the inflation seat due to centrifugal force when the inflation seat rotates at high speed, making the gas distribution structure more stable and reliable.

[0026] Optionally, one end of the horizontal part and one end of the vertical part of the rotating channel are both connected to the outside, and the ends of the horizontal part and the vertical part of the rotating channel that are connected to the outside are both provided with sealing plugs.

[0027] By adopting the above technical solution, the horizontal part and the vertical part of the rotating channel are connected to the outside world because the inflatable seat is processed when the channel is opened. When the inflatable seat is opened, a hole is drilled inside the inflatable seat to form a channel. This processing method of the inflatable seat makes the processing technology of the inflatable seat simpler and reduces the processing cost. The setting of the sealing plug ensures the sealing of the channel.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. Multiple sealing rubber rings seal the inflation channel, reducing the amount of gas that enters the installation groove from the fixed channel and the rotating channel. When the cylinder is deflated, the sealing rubber ring will block part of the lubricating oil from leaking into the inflation channel, reducing the amount of lubricating oil leakage caused by gas circulation, ensuring the cleanliness of the inflation channel and reducing the possibility of clogging of the inflation channel;

[0030] 2. The elastic member continuously applies force to the sealing rubber ring to approach the inflation seat, ensuring that the sealing rubber ring can continue to abut against the inflation seat even after being worn, further improving the sealing performance of the inflation channel;

[0031] 3. The array distribution of multiple rotating channels makes the gas in and out of the cylinder cavity smoother and more uniform, ensuring that the piston in the cylinder is subjected to force in multiple directions, making the operation of the press smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a cross-sectional view of a screw press gas distribution structure according to an embodiment of the present application.

[0033] Figure 2 yes Figure 1 Enlarged view of part A.

[0034] Figure 3 yes Figure 2 Enlarged view of part B.

[0035] Explanation of the accompanying drawings: 1. Frame; 2. Screw; 3. Inflating seat; 4. Distribution seat; 41. Fixed channel; 42. Mounting groove; 43. Receiving groove; 5. Inflating channel; 51. Rotating channel; 52. Main channel; 6. Sealing rubber ring; 7. Elastic part; 8. Hose; 9. Sealing plug. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-3 This application is described in further detail.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0039] The present application embodiment discloses a screw press gas distribution structure. Figure 1 and Figure 2 A screw press air distribution structure includes a frame 1 and a screw 2, the screw 2 is rotatably connected to the frame 1, an air filling seat 3 is coaxially fixed to the outside of the screw 2, the air filling seat 3 is fixedly connected to the cylinder body of the cylinder, and the air filling seat 3, the cylinder body and the screw 2 rotate synchronously. The frame 1 is fixed with an air distribution seat 4, the air distribution seat 4 is coaxially arranged with the air filling seat 3, the air distribution seat 4 and the air filling seat 3 are rotatably connected through two annular bearings, and the air distribution seat 4 is provided with annular mounting grooves 42 for mounting bearings at the positions corresponding to the two bearings. The air distribution seat 4 and the air filling seat 3 are jointly provided with an air filling channel 5, and the two mounting grooves 42 are respectively located at the upper and lower sides of the air filling channel 5. The air filling channel 5 is provided with a horizontally arranged fixed channel 41 at the position corresponding to the air distribution seat 4, and a rotating channel 51 at the position corresponding to the air filling seat 3. The fixed channel 41 is connected to the rotating channel 51, and the rotating channel 51 is connected to the cavity of the cylinder away from the fixed channel 41.

[0040] Reference Figure 3 On the side of the air distribution seat 4 close to the air filling seat 3, two annular receiving grooves 43 are provided at the upper and lower sides of the corresponding fixed channel 41. The receiving groove 43 opens toward the air filling seat 3. An annular sealing rubber ring 6 is installed in the receiving groove 43. The sealing rubber ring 6 seals the receiving groove 43. The sealing rubber ring 6 abuts against the air filling seat 3 on the side close to the air filling seat 3. An annular elastic member 7 is provided on the side of the sealing rubber ring 6 away from the air filling seat 3. The elastic member 7 can be an elastic sheet or an elastic rubber ring. The elastic member 7 is located in the receiving groove 43 and abuts against the sealing rubber ring 6. The elastic member 7 applies a force to the sealing rubber ring 6 to approach the air filling seat 3.

[0041] The provision of multiple sealing rubber rings 6 reduces the amount of gas that enters the installation groove 42 from between the fixed channel 41 and the rotating channel 51, and increases the gas pressure difference between the installation groove 42 and the inflation channel 5, so that when the cylinder is deflated, the sealing rubber ring 6 will block a portion of the lubricating oil from leaking into the inflation channel 5, reducing the amount of lubricating oil leakage caused by gas circulation. Since the sealing rubber ring 6 is located between the rotating inflation seat 3 and the fixed distribution seat 4, when the inflation seat 3 rotates relative to the distribution seat 4, friction will be generated on the sealing rubber ring 6, causing the sealing rubber ring 6 to wear. The elastic member 7 continuously applies force to the sealing rubber ring 6 to approach the inflation seat 3, ensuring that the sealing rubber ring 6 can continue to abut against the inflation seat 3 even after being worn, further improving the sealing of the inflation channel 5.

[0042] Reference Figure 1 and Figure 2 There are multiple rotating channels 51, which are arranged in an array around the axis of the screw 2. The multiple rotating channels 51 are connected to a circular main channel 52 at one end close to the fixed channel 41. The inner side of the main channel 52 is connected to the rotating channel 51, and the outer side is connected to the fixed channel 41. The array distribution of the multiple rotating channels 51 makes the gas in and out of the cylinder cavity smoother and more uniform, improves the inflation and deflation speed of the cylinder, and ensures that the piston in the cylinder is stressed in multiple directions, so that the clutch of the press can operate stably.

[0043] Further, see Figure 2 , the bottom wall height of the end of the fixed channel 41 connected to the main channel 52 is lower than the bottom wall height of the end of the main channel 52 connected to the fixed channel 41. When the lubricating oil in the mounting groove 42 enters the inflation channel 5 along the gap between the gas distribution seat 4 and the inflation seat 3 under the action of gas pressure, since the bottom wall of the fixed channel 41 is lower than the bottom wall of the main channel 52, the lubricating oil will accumulate in the fixed channel 41, thereby reducing the amount of lubricating oil entering the main channel 52. The possibility of blockage of the main channel 52 can be reduced by regularly cleaning the fixed channel 41, thereby ensuring the smooth flow of the inflation channel 5.

[0044] Reference Figure 1 The rotating channel 51 also includes a horizontal part and a vertical part that are interconnected. The bottom end of the vertical part is connected to the horizontal part, and the top end is connected to the main channel 52. The end of the horizontal part away from the vertical part is connected to a hose 8, and the end of the hose 8 away from the rotating channel 51 is connected to the cylinder body. On the one hand, the provision of the hose 8 simplifies the structure of the inflation seat 3, makes the production and processing of the inflation seat 3 simpler, and reduces the processing cost. On the other hand, when the gas distribution structure needs to be inspected and cleaned, the hose 8 can be separated from the cylinder body and the inflation seat 3, making the inspection of the gas distribution structure more convenient.

[0045] Further, see Figure 1The horizontal part of the rotating channel 51 extends away from one end of the vertical part to the side wall of the inflatable seat 3 and communicates with the outside world. The vertical part of the rotating channel 51 extends away from one end of the main channel 52 to the bottom of the inflatable seat 3 and communicates with the outside world. The horizontal part and the vertical part of the rotating channel 51 are both fixedly connected to one end that is connected to the outside world with a sealing plug 9. When the inflatable seat 3 is processed, a hole is drilled inside the side wall of the inflatable seat 3 to form a part of the channel. The processing method of the inflatable seat 3 is simple in processing technology and reduces processing costs. However, the drilling method makes the channel communicate with the outside world, forming an open channel. The setting of the sealing plug 9 seals the opening of the channel, thereby ensuring the sealing of the rotating channel 51.

[0046] The implementation principle of the gas distribution structure of a screw press in the embodiment of the present application is as follows: when the cylinder needs to be pressurized, the gas charging device presses the gas into the fixed channel 41, and the gas enters the main channel 52 through the fixed channel 41, and then enters the cavity of the cylinder through the hose 8 along the multiple rotating channels 51, so that the pressure in the cylinder wall increases. When the cylinder needs to be depressurized, the gas in the cavity will return to the original path to achieve depressurization of the cylinder. During the pressurization, the setting of the sealing rubber ring 6 will reduce the possibility of gas entering the installation groove 42 through the connection part between the fixed channel 41 and the main channel 52. Even if a small amount of gas enters the installation groove 42 due to the insufficient sealing of the sealing rubber ring 6, when the cylinder is depressurized, the gas in the installation groove 42 will enter the inflation channel 5 along with some lubricating oil through the sealing rubber ring 6. The sealing rubber ring 6 will block part of the lubricating oil, and the unblocked lubricating oil will enter the inflation channel 5 along the gap between the valve seat 4 and the inflation seat 3. Since the bottom wall of the fixed channel 41 is lower than the bottom wall of the main channel 52, the lubricating oil will accumulate in the fixed channel 41, thereby reducing the amount of lubricating oil entering the main channel 52, thereby ensuring the smooth flow of the inflation channel 5. Since the sealing rubber ring 6 is located between the valve seat 4 and the inflation seat 3, when the inflation seat 3 rotates relative to the valve seat 4, it will cause friction to the sealing rubber ring 6 and cause the sealing rubber ring 6 to wear. At this time, the elastic member 7 continuously applies force to the sealing rubber ring 6 to approach the inflation seat 3, ensuring that the sealing rubber ring 6 can continue to abut against the inflation seat 3 even after being worn, further improving the sealing performance of the sealing rubber ring 6 and reducing the possibility of lubricating oil entering the inflation channel 5.

[0047] The embodiment of the present application has the effect of enhancing the sealing performance of the inflation channel 5 and reducing the possibility of lubricating oil entering the inflation channel 5 .

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A screw press gas distribution structure, characterized in that: include: Rack (1); A screw rod (2), the screw rod (2) being rotatably connected to the frame (1); An air-filling seat (3), the air-filling seat (3) is coaxially fixed to the outside of the screw (2), the air-filling seat (3) is connected to the cylinder, and rotates synchronously with the screw (2); A gas distribution seat (4), the gas distribution seat (4) is connected to the frame (1); the gas distribution seat (4) is coaxially sleeved on the outside of the inflation seat (3), and the inflation seat (3) is rotatably connected to the gas distribution seat (4); An air charging channel (5), the air charging channel (5) comprising a fixed channel (41) opened on the air distribution seat (4) and a rotating channel (51) opened on the air charging seat (3); the fixed channel (41) is connected to the rotating channel (51), and the rotating channel (51) is connected to the cavity of the cylinder; A plurality of sealing rubber rings (6), wherein the sealing rubber rings (6) are located between the gas distribution seat (4) and the inflation seat (3), and the plurality of sealing rubber rings (6) are respectively located on both sides of the position where the fixed channel (41) and the rotating channel (51) are connected; the plurality of sealing rubber rings (6) seal the inflation channel (5).

2. The screw press gas distribution structure according to claim 1, characterized in that: An elastic member (7) is provided on one side of the sealing rubber ring (6) close to the gas distribution seat (4), and the elastic member (7) applies a force to the sealing rubber ring (6) to move it close to the inflation seat (3).

3. The screw press air distribution structure according to claim 1, characterized in that: The height of the bottom wall of the fixed channel (41) close to one end of the rotating channel (51) is lower than the height of the bottom wall of the rotating channel (51) close to one end of the fixed channel (41).

4. The screw press air distribution structure according to claim 1, characterized in that: A plurality of the rotating channels (51) are provided, and the plurality of rotating channels (51) are all in communication with the fixed channel (41).

5. The screw press air distribution structure according to claim 4, characterized in that: The plurality of rotating channels (51) are distributed in an array around the axis of the screw (2).

6. The screw press air distribution structure according to claim 1, characterized in that: One end of the rotating channel (51) away from the fixed channel (41) is connected to a hose (8), and the rotating channel (51) is connected to the cylinder via the hose (8).

7. The screw press air distribution structure according to claim 6, characterized in that: The rotating channel (51) comprises a horizontal portion and a vertical portion, and the hose (8) is connected to the rotating channel (51) at the horizontal portion of the rotating channel (51).

8. The screw press air distribution structure according to claim 7, characterized in that: One end of the horizontal part and one end of the vertical part of the rotating channel (51) are both in communication with the outside world, and the ends of the horizontal part and the vertical part of the rotating channel (51) that are in communication with the outside world are both provided with sealing plugs (9).

Images