Hose pump distance adjusting mechanism and hose pump applying same

Abstract

The invention discloses a hose pump distance adjusting mechanism and a hose pump applying the same, the hose pump distance adjusting mechanism comprises a pressing roller, the pressing roller is used for extruding a hose of the hose pump, the pressing roller is mounted on a mounting frame, the mounting frame is mounted on a rotating part through an adjusting mechanism, the rotating part drives the pressing roller and the mounting frame to rotate relative to the hose, and then the hose is extruded; the adjusting mechanism is used for adjusting the distance between the pressing roller and the axis, rotating relative to the hose, of the rotating piece. When the hose pump pumps viscous liquid with the high solid content, due to the fact that solid exists in the liquid, friction between the solid and the hose is large in the process that the hose is rolled by the pressing roller, abrasion to the hose is caused to a certain degree, the part, making contact with the pressing roller, of the hose is thinned, and in order to guarantee the rolling effect of the pressing roller on the hose, the hose is driven by the hose pump to rotate. The rolling effect of the pressing roller on the hose is guaranteed by regularly adjusting the distance between the pressing roller and the rotating part relative to the rotating axis of the hose through the adjusting mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field related to pumps with flexible hose parts, and in particular to a hose pump distance adjustment mechanism and a hose pump using the same. Background Art

[0002] In the process of biogas fermentation, concentrated biogas liquid needs to be pumped out of the storage tank by hose pumping to remove the thick biogas liquid with high solid content. By adjusting the pump mechanism, the current problems of difficult pumping of concentrated biogas liquid and frequent replacement of hoses have been solved.

[0003] Existing hose pumps generally include a hose installed in a housing and a pressure roller for squeezing the hose, but the wear of the hose during actual use causes the squeezing effect of the pressure roller hose to deteriorate. As the authorization announcement number is: CN219774316U, a low-cost, high-flow hose pump is disclosed, including a mounting bracket, an annular pump housing is installed on the surface of the mounting bracket, a U-shaped hose and a rotating frame are arranged inside the annular pump housing, and pulley mounting frames are connected to both ends of the rotating frame. In the utility model, a rotating frame is arranged inside the annular pump housing, and an outer pulley is installed at both ends of the rotating frame through a pulley mounting frame, and the motor drive with a reducer equipped with a speed reducer in an integrated frequency conversion speed regulation can control the rotation speed of the outer pulley to achieve automatic flow adjustment, and when the motor equipped with a reducer rotates, the rotating frame can be driven to rotate along the inside of the annular pump housing, driving the outer pulley to rotate along the surface of the hose to squeeze the hose, and the outer pulley rolls smoothly along the surface of the hose during the squeezing process of the hose. The above patent only involves controlling the roller rotation speed to achieve flow regulation, but the hose will be worn over time, especially for the pumping of liquids with solid residues, resulting in poor squeezing effect between the roller and the hose, poor medium pumping effect, and frequent replacement of the hose. Summary of the invention

[0004] In order to solve the technical problems existing in the background technology, the present invention proposes a hose pump distance adjustment mechanism and a hose pump using the same.

[0005] A hose pump distance adjustment mechanism proposed in the present invention includes a pressure roller, which is used to squeeze the hose of the hose pump. The pressure roller is installed on a mounting frame, and the mounting frame is installed on a rotating member through an adjustment mechanism. The rotating member drives the pressure roller and the mounting frame to rotate relative to the hose, thereby squeezing the hose. The adjustment mechanism is used to adjust the distance from the pressure roller to the axis of rotation of the rotating member relative to the hose.

[0006] When the hose pump is pumping a viscous liquid with a high solid content, the presence of solids in the liquid will cause relatively large friction between the solids and the hose during the rolling process of the roller, which will cause wear on the hose to a certain extent, and then make the part of the hose in contact with the roller thinner. In order to ensure the rolling effect of the roller on the hose, the distance between the roller and the rotating part relative to the rotation axis of the hose is regularly adjusted through the adjustment mechanism to ensure the rolling effect of the roller on the hose.

[0007] Specifically in some embodiments, the adjustment mechanism includes a sliding column and a fixing member, the sliding column is fixed on the mounting frame, and the sliding column is slidably installed on the rotating column, and the fixing member is detachably installed on the sliding column and the rotating member to achieve the fixation or adjustment of the relative position of the sliding column and the rotating member.

[0008] In some embodiments, preferably, an elastic bag is installed in the hose pump housing, the elastic bag and the hose form a ring-shaped structure covering the inner wall of the hose pump housing, and the pressure roller is in contact with the elastic bag or the hose;

[0009] The rotating member is provided with a sliding hole, and the end of the mounting frame away from the pressure roller is slidably mounted in the sliding hole;

[0010] The adjustment mechanism includes an adjustment shaft installed on the rotating member by means of a thread, the adjustment shaft has an adjustment section, a conical adjustment portion is provided outside the adjustment section, the mounting frame is away from the pressure roller and contacts the adjustment portion, and the adjustment shaft is rotated to change the distance from the pressure roller to the axis of the adjustment shaft.

[0011] Preferably, the axis of the adjusting shaft coincides with the axis of rotation of the rotating member relative to the hose.

[0012] Preferably, it further comprises a rotating shaft, the adjusting shaft is sleeved in the rotating shaft, the rotating shaft drives the adjusting shaft to rotate and the adjusting shaft can slide relative to the rotating shaft.

[0013] Preferably, a roller is rollingly mounted on a surface of the mounting frame opposite to the adjusting portion, and the roller is in point contact with the adjusting portion.

[0014] Preferably, the rollers are provided in at least two groups, and the at least two groups of rollers are distributed along the axial direction of the adjusting shaft.

[0015] Preferably, an annular groove is formed on the pressing roller to reduce the wear of the hose and the pressing roller caused by the viscous liquid with a high solid content.

[0016] Preferably, two groups of pressure rollers are provided on one mounting frame and the angle between the two groups of pressure rollers is less than 30°, and when the two pressure rollers on one mounting frame move to the same position on the hose, the annular grooves on the two pressure rollers are alternately distributed, thereby ensuring the pump pressure effect while reducing the wear of the pressure rollers and the hose.

[0017] A hose pump is used for pumping thick liquid with high solid content, including a shell with a cylindrical cavity, a hose with a part located in the cylindrical cavity, and the above-mentioned hose pump distance adjustment mechanism. The pressure roller is located in the shell and is used to squeeze the hose.

[0018] In the present invention, the proposed hose pump distance adjustment mechanism and the hose pump using the same adjust the distance between the pressure roller and the rotating part relative to the rotation axis of the hose through the adjustment mechanism, thereby ensuring the pressurization distance of the pressure roller on the hose, obtaining an optimal operating condition, minimizing the wear rate of the hose, and also meeting the flow rate requirements of the sludge concentrate. Subsequently, the adjustment mechanism is further fine-tuned according to the degree of wear of the hose, thereby ensuring that the hose pump is always in a better operating state, extending the service life of the hose, reducing the replacement frequency, and reducing the procurement cost of the hose.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the adjustment mechanism in some embodiments of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection structure between the adjusting shaft and the housing of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the pressure roller of the present invention;

[0024] In the figure: 1. shell; 10. cylindrical cavity; 11. feed port; 12. discharge port; 13. slot; 2. hose; 3. raised strip; 4. pressure roller; 40. annular groove; 5. mounting frame; 6. rotating part; 60. sliding hole; 7. sliding column; 8. fixing part; 9. elastic bag; 14. adjusting shaft; 140. adjusting part; 15. rotating shaft; 16. roller. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] like Figure 1-Figure 2 A hose pump distance adjustment mechanism shown is installed on a hose pump, the hose pump includes a shell 1, the shell 1 has a cylindrical cavity 10 with an arc surface on the outside, and the shell 1 has a feed port 11 and a discharge port 12, the feed port 11 is located below the discharge port 12, the hose 2 enters the cylindrical cavity 10 from the feed port 11 and extends out of the shell 1 through the discharge port 12, the part of the hose 2 located in the cylindrical cavity 10 is close to the inner wall of the cylindrical cavity 10, preferably, the outer wall of the hose 2 has a raised strip 3 along its radial direction, the inner wall of the shell 1 has a groove 13, the raised strip 3 matches the groove 13, thereby ensuring the mutual positioning of the hose 2 and the shell 1, and the distance adjustment mechanism includes The pressure roller 4 is used to squeeze the hose 2 of the hose pump. The pressure roller 4 is installed on the mounting frame 5, and the mounting frame 5 is installed on the rotating member 6 through the adjusting mechanism. The external driving motor drives the rotating member 6 to rotate so as to realize the rolling of the pressure roller 4 relative to the hose 2. Since the hose pump is used to pump thick liquid (sludge concentrate) with a high solid content, the hose 2 is worn due to the friction of the solids on the hose 2. Therefore, the adjusting mechanism is used to adjust the distance from the pressure roller 4 to the axis of rotation of the rotating member 6 relative to the hose 2, and then adjust the distance from the pressure roller 4 to the hose 2 when the hose 2 is worn to ensure the force of the pressure roller 4 when rolling on the hose 2, thereby ensuring the best operating state.

[0027] like Figure 2 As shown, in some embodiments, specifically, the adjustment mechanism includes a sliding column 7 and a fixing member 8, the sliding column 7 is fixed on the mounting frame 5, and the sliding column 7 is slidably installed on the rotating column, the fixing member 8 is detachably installed on the sliding column 7 and the rotating member 6 and realizes the fixation or adjustment of the relative position of the sliding column 7 and the rotating member 6, and the fixing member 8 can be a fixing pin, a bolt or a nut.

[0028] like Figure 3-Figure 4 As shown, in some embodiments, preferably, an elastic bag 9 is installed in the hose pump housing 1, the elastic bag 9 and the hose 2 form an annular structure that covers the inner wall of the hose pump housing 1, the pressure roller 4 contacts the elastic bag 9 or the hose 2, and the elastic bag 9 is filled with gas.

[0029] Generally, there are two groups of pressure rollers 4 and mounting frames 5, the angle between the two groups of mounting frames 5 is 180°, the rotating member 6 is a disc, the axis of the disc coincides with the axis of rotation of the rotating member 6 relative to the hose 2, one group of pressure rollers 4 is in contact with the hose 2, and the other group of pressure rollers 4 is in contact with the elastic bag 9, thereby achieving the limitation of the pressure rollers 4. Preferably, a pressure sensor is provided in the elastic bag 9, and the position of the pressure rollers 4 relative to the rotating member 6 is detected by the pressure sensor; and according to the value detected by the pressure sensor, it is judged whether the minimum distances from the two groups of pressure rollers 4 to the axis of the rotating member 6 are equal.

[0030] The rotating member 6 has a sliding hole 60, and the end of the mounting frame 5 away from the pressure roller 4 is slidably mounted in the sliding hole 60;

[0031] The adjusting mechanism includes an adjusting shaft 14 installed on the rotating member 6 by means of a thread. Preferably, the axis of the adjusting shaft 14 coincides with the axis of rotation of the rotating member 6 relative to the hose 2. The adjusting shaft 14 has an adjusting section, and a conical adjusting portion 140 is provided outside the adjusting section. The mounting frame 5 is away from the pressure roller 4 and contacts the adjusting portion 140. The adjusting shaft 14 is rotated to change the distance from the pressure roller 4 to the axis of the adjusting shaft 14. The pressure roller 4 at one end of the mounting frame 5 contacts the hose 2 or the elastic bag 9, and the other end of the mounting frame 5 contacts the adjusting portion 140, thereby achieving the limitation of the mounting frame 5.

[0032] Specifically, in some embodiments, it also includes a rotating shaft 15 installed on the outer shell 1, and the adjusting shaft 14 is sleeved in the rotating shaft 15. The rotating shaft 15 drives the adjusting shaft 14 to rotate and the adjusting shaft 14 can slide relative to the rotating shaft 15. The rotating shaft 15 is connected to an external driving motor. The rotating shaft 15 has a part extending to the cylindrical cavity 10. The rotating shaft 15 has an extension ring 150. There is a support rod 17 between the extension ring 150 and the rotating member 6 to facilitate the adjustment of the position of the adjusting shaft 14 relative to the rotating member 6. The position of the two mounting frames can be adjusted by rotating the adjusting shaft 14 and the distance between the two mounting frames and the axis of the adjusting shaft 14 is ensured to be the same.

[0033] In some embodiments, Figure 3 As shown, the end of the adjusting shaft away from the rotating shaft 15 is located in the cylindrical cavity 10, and the end of the adjusting shaft 14 away from the rotating shaft 15 is provided with a hexagonal groove. The outer shell 1 is provided with a hole, and an end cover is removably installed in the hole. After the end cover is removed, the existing hexagonal rod can be matched with the hexagonal groove to drive the adjusting shaft to rotate.

[0034] Preferably, a roller 16 is rollingly mounted on a side of the mounting frame 5 opposite to the adjusting portion 140 , and the roller 16 is in point contact with the adjusting portion 140 , so as to facilitate adjusting the distance from the pressure roller 4 to the axis of the adjusting shaft 14 during the rotation of the adjusting shaft 14 .

[0035] Preferably, at least two groups of rollers 16 are provided, and the at least two groups of rollers 16 are distributed along the axial direction of the adjusting shaft 14 .

[0036] Preferably, an annular groove 40 is formed on the pressure roller 4 to reduce the wear of the hose 2 and the pressure roller 4 due to the viscous liquid with a high solid content. Preferably, the annular groove 40 gradually narrows from the side away from the axis of the pressure roller 4 to the side close to the axis of the pressure roller 4 to increase the pump pressure effect.

[0037] In order to further ensure the pumping effect and reduce the wear of the hose 2, in some embodiments, preferably, two groups of pressure rollers 4 are provided on a mounting frame 5 and the angle between the two groups of pressure rollers 4 is less than 30°, and when the two pressure rollers 4 on a mounting frame 5 move to the same position on the hose 2, the annular grooves on the two pressure rollers 4 are alternately distributed, thereby ensuring the pumping effect while reducing the wear of the pressure rollers 4 and the hose 2.

[0038] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, 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 one; it can be a mechanical connection, an electrical connection, or communication with each other; 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hose pump distance adjustment mechanism, comprising a pressure roller (4), the pressure roller (4) being used to squeeze a hose (2) of the hose pump, characterized in that: The pressure roller (4) is mounted on a mounting frame (5), and the mounting frame (5) is mounted on a rotating member (6) via an adjusting mechanism, wherein the adjusting mechanism is used to adjust the distance between the pressure roller (4) and the rotating member (6) relative to the axis of rotation of the hose (2).

2. The hose pump distance adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism comprises a sliding column (7) and a fixing member (8), wherein the sliding column (7) is fixed on the mounting frame (5), and the sliding column (7) is slidably mounted on the rotating column, and the fixing member (8) is detachably mounted on the sliding column (7) and the rotating member (6) and realizes the fixing or adjustment of the relative position of the sliding column (7) and the rotating member (6).

3. The hose pump distance adjustment mechanism according to claim 1, characterized in that: An elastic bag (9) is installed in the hose pump housing (1), the elastic bag (9) and the hose (2) form an annular structure that covers the inner wall of the hose pump housing (1), and the pressure roller (4) is in contact with the elastic bag (9) or the hose (2); The rotating member (6) has a sliding hole (60), and the end of the mounting frame (5) away from the pressing roller (4) is slidably mounted in the sliding hole (60); The adjustment mechanism comprises an adjustment shaft (14) mounted on the rotating member (6) by means of a thread, the adjustment shaft (14) having an adjustment section, a conical adjustment portion (140) outside the adjustment section, the mounting frame (5) being away from the pressure roller (4) and in contact with the adjustment portion (140), and the distance from the pressure roller (4) to the axis of the adjustment shaft (14) is changed by rotating the adjustment shaft (14).

4. The hose pump distance adjustment mechanism according to claim 3, characterized in that: The axis of the adjusting shaft (14) coincides with the axis of rotation of the rotating member (6) relative to the hose (2).

5. The hose pump distance adjustment mechanism according to claim 3, characterized in that: It also comprises a rotating shaft (15), the adjusting shaft (14) is sleeved inside the rotating shaft (15), the rotating shaft (15) drives the adjusting shaft (14) to rotate, and the adjusting shaft (14) can slide relative to the rotating shaft (15).

6. The hose pump distance adjustment mechanism according to claim 3, characterized in that: A roller (16) is rollingly mounted on a surface of the mounting frame (5) opposite to the adjusting portion (140), and the roller (16) is in point contact with the adjusting portion (140).

7. The hose pump distance adjustment mechanism according to claim 6, characterized in that: At least two groups of rollers (16) are provided, and at least two groups of rollers (16) are distributed along the axial direction of the adjustment shaft (14).

8. The hose pump distance adjustment mechanism according to claim 5, characterized in that: The pressure roller (4) is provided with an annular groove (40).

9. The hose pump distance adjustment mechanism according to claim 8, characterized in that: Two groups of pressure rollers (4) are arranged on one of the mounting frames (5), and the angle between the two groups of pressure rollers (4) is less than 30 degrees. When the two pressure rollers (4) on one of the mounting frames (5) move to the same position on the hose (2), the annular grooves (40) on the two pressure rollers (4) are alternately distributed.

10. A hose pump for pumping thick liquid with a high solid content, comprising a housing (1) having a cylindrical cavity (10), a hose (2) having a portion located in the cylindrical cavity (10), characterized in that: It also comprises a hose pump distance adjustment mechanism as claimed in any one of claims 1 to 9, wherein the pressure roller (4) is located in the housing (1) and is used for squeezing the hose (2).

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