Central water outlet high-pressure pump with pressure maintaining device for machine tool

Abstract

The utility model discloses a central water outlet high-pressure pump with a pressure maintaining device for a machine tool, which relates to the technical field of high-pressure pumps and comprises a high-pressure pump body, a pressure relief pipe and a rotating shaft extending to the outer side of the pressure relief pipe, an impeller is mounted on the portion, located on the outer side of the pressure relief pipe, of the rotating shaft, and an elastic connecting assembly is mounted at the top end of the rotating shaft. A clicker is mounted at a pipe orifice on one side, close to the rotating shaft, of the pressure relief pipe. Through the arrangement of the impeller, a worker can know the pressure relief condition by observing the rotating speed of the impeller, through the arrangement of the elastic connecting assembly and the clicker, when the pressure relief amount of the high-pressure pump body is out of a preset range, airflow enables the impeller to rotate at a high speed, and the rotating shaft drives the elastic connecting assembly to rotate at a high speed; the elastic connecting assembly extends under the action of overlarge centrifugal force, the elongated elastic connecting assembly knocks the clicker to make a sound and give a noise alarm in the rotating process, even if sensor equipment in the prior art breaks down, the elastic connecting assembly can be matched with the clicker to give an alarm, and the alarm effect is more stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure pumps, and particularly relates to a central water outlet high-pressure pump for machine tools with a pressure maintaining device. Background Technique

[0002] A high-pressure pump is a device that provides high-pressure power for high-pressure rotary jet grouting cement slurry, and is used for foundation strengthening and reinforcement in construction, roads, etc. It can also be used for high-pressure water jet assisted rock breaking and coal falling, underground hydraulic support liquid supply, pumping high-pressure water for water-expanded metal anchor bolts for anchoring, and dredging, cleaning, and washing of large underground pipelines.

[0003] For example, a central water outlet high-pressure pump for machine tools with a pressure maintaining device provided in the patent publication number CN216278421U includes a high-pressure pump. The side wall of the high-pressure pump is evenly and equidistantly provided with heat dissipation grooves. A rectangular groove is provided on the side wall of the high-pressure pump. A connecting plate is movably installed inside the rectangular groove. Four corners of the side wall of the connecting plate are all threadedly installed with first bolts. After the four first bolts pass through the connecting plate, they are threadedly installed inside the high-pressure pump. The lower end of the high-pressure pump is fixedly installed with a mounting plate. The upper end of the mounting plate is symmetrically threadedly installed with second bolts. A connecting pipe is fixedly installed on the side wall of the mounting plate. One end of the connecting pipe away from the mounting plate is fixedly installed with a pressure maintaining mechanism. The pressure maintaining mechanism includes a first connection plate. The first connection plate is fixedly installed at one end of the connecting pipe away from the mounting plate. A connecting column is fixedly installed at the upper end of the first connection plate, so that the device can effectively prevent the continuous increase of the internal pressure of the high-pressure pump during use and improve the working safety of the high-pressure pump.

[0004] Based on the above search and combined with the prior art, it is found that in the prior art, the pressure maintaining device of the central water outlet high-pressure pump for machine tools similar to the above disclosure only uses a pressure relief structure to release air and relieve pressure for the high-pressure pump. However, it is difficult for the staff to know the pressure relief situation of the pressure relief structure, and they can only understand the internal air pressure of the high-pressure pump and the related pressure relief situation through relevant electrical equipment. The electrical equipment is prone to failure, and there are phenomena of false alarms or no alarms. Therefore, a central water outlet high-pressure pump for machine tools with a pressure maintaining device is proposed to improve the above problems. Content of the Utility Model

[0005] The purpose of this application is to provide a central water outlet high-pressure pump for machine tools with a pressure maintaining device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, this application provides the following technical solution: A central water outlet high-pressure pump for machine tools with a pressure maintaining device includes a high-pressure pump body with a pressure relief valve installed at the pressure relief port, and a pressure relief pipe installed at the pressure relief port of the high-pressure pump body. It further includes:

[0007] One end of the pressure relief pipe away from the pressure relief port is rotatably installed with a rotating shaft inside. The rotating shaft extends to the outside of the pressure relief pipe, and an impeller is installed on the part of the rotating shaft located outside the pressure relief pipe;

[0008] An elastic connection assembly is provided on the upper side of the impeller, and the elastic connection assembly is installed at the top end of the rotating shaft;

[0009] A mounting seat is installed at the pipe orifice on the side of the pressure relief pipe close to the rotating shaft. A column is installed on the end face of the mounting seat away from the pressure relief pipe. A sounding piece is installed on the column through a torsion spring, so that:

[0010] When the pressure relief amount of the high-pressure pump body is within the preset range, the airflow causes the impeller to rotate at a low speed, the rotating shaft drives the elastic connection assembly to rotate at a low speed, and the rotating elastic connection assembly does not contact the sounding piece;

[0011] When the pressure relief amount of the high-pressure pump body is outside the preset range, the airflow causes the impeller to rotate at a high speed, the rotating shaft drives the elastic connection assembly to rotate at a high speed, so that the elastic connection assembly elongates under the action of excessive centrifugal force, and the elongated elastic connection assembly knocks on the sounding piece during rotation to make a sound.

[0012] As a further supplement to this solution, there are two elastic connection assemblies and two sounding pieces. The two elastic connection assemblies are symmetrically arranged about the rotating shaft at 180 degrees, and the two sounding pieces are also symmetrically arranged about the rotating shaft at 180 degrees.

[0013] As a further supplement to this solution, the elastic connection assembly includes a limiting slide bar, a limiting slide sleeve and an elastic stretching member. The limiting slide bar is fixed to the side end of the rotating shaft. The limiting slide sleeve is slidably sleeved on the outer side of the end of the limiting slide bar away from the rotating shaft. The elastic stretching member is fixed between the limiting slide bar and the limiting slide sleeve.

[0014] As a further supplement to this solution, a transparent cover is provided outside the impeller, and the transparent cover is fixed to the upper end of the mounting seat.

[0015] As a further supplement to this solution, an adjusting mechanism is installed between the mounting seat and the column to adjust the distance between the sounding piece and the elastic connection assembly.

[0016] As a further supplement to this solution, the adjusting mechanism includes a fixed seat, an adjusting seat, a bidirectional threaded rod and a guiding slide bar;

[0017] The fixed seat is fixed to the upper end of the mounting seat, the adjusting seat is fixed to the lower end of the column, the bidirectional threaded rod is rotatably installed on the fixed seat, the bidirectional threaded rod threadedly penetrates through the adjusting seat, an adjusting handle is installed at one end of the bidirectional threaded rod, the guiding slide bar is fixed to the fixed seat and is arranged parallel to the bidirectional threaded rod, and the guiding slide bar slidably penetrates through the adjusting seat.

[0018] In summary, the technical effects and advantages of the present utility model:

[0019] 1. In the utility model, a rotating shaft is rotatably installed on the inner side of one end of the pressure relief pipe away from the pressure relief port, the rotating shaft extends to the outside of the pressure relief pipe, and an impeller is installed on the part of the rotating shaft located outside the pressure relief pipe. When the high-pressure pump body releases pressure, the airflow causes the impeller to rotate, and the staff can know the pressure relief situation by observing the rotation speed of the impeller, that is, the faster the rotation speed, the faster the high-pressure pump releases pressure, and the slower the rotation speed, the slower the high-pressure pump releases pressure.

[0020] 2. In the utility model, through the arrangement of the elastic connection component and the clicker, when the pressure relief of the high-pressure pump body is within a preset range, the airflow causes the impeller to rotate at a low speed, and the rotating shaft drives the elastic connection component to rotate at a low speed, and the rotating elastic connection component does not contact the clicker, and the staff can know the pressure relief situation by observing the rotation speed of the impeller; when the pressure relief of the high-pressure pump body is outside the preset range, the airflow causes the impeller to rotate at a high speed, and the rotating shaft drives the elastic connection component to rotate at a high speed, so that the elastic connection component stretches under the action of excessive centrifugal force, and the stretched elastic connection component strikes the clicker to make a sound during the rotation process, thereby issuing a noise alarm. Even if the sensor equipment in the prior art fails, the alarm can be sounded through the elastic connection component in cooperation with the clicker, and the alarm effect is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the overall three-dimensional structure of this embodiment;

[0023] Figure 2 is a schematic diagram of the three-dimensional structure of the mounting base in this embodiment;

[0024] Figure 3 is a schematic diagram of the three-dimensional structure of the impeller in this embodiment;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism in this embodiment.

[0026] In the figure: 1. high-pressure pump body; 2. pressure relief pipe; 3. rotating shaft; 4. impeller; 5. mounting seat; 6. column; 7. clicker; 8. transparent cover; 9. elastic connection assembly; 91. limit slide rod; 92. limit slide sleeve; 93. elastic stretching member; 10. adjustment mechanism; 101. fixing seat; 102. adjustment seat; 103. bidirectional threaded rod; 104. guide slide rod; 105. adjustment handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example: Reference Figures 1-4 A central water-outlet high-pressure pump for machine tools with a pressure-maintaining device is shown, comprising a high-pressure pump body 1 with a pressure relief valve (not shown in the figure) installed at the pressure relief port, and a pressure relief pipe 2 installed at the pressure relief port of the high-pressure pump body 1, wherein the pressure relief valve can be a conventional valve group component in the prior art.

[0029] In order to facilitate the staff to directly observe the pressure relief situation of the high-pressure pump, in this solution, a rotating shaft 3 is rotatably installed on the inner side of the end of the pressure relief pipe 2 away from the pressure relief port, the rotating shaft 3 extends to the outside of the pressure relief pipe 2, and the part of the rotating shaft 3 located outside the pressure relief pipe 2 is installed with an impeller 4. When the high-pressure pump body 1 releases pressure, the airflow causes the impeller 4 to rotate, and the staff can know the pressure relief situation by observing the rotation speed of the impeller 4, that is, the faster the rotation speed, the faster the high-pressure pump releases pressure, and the slower the rotation speed, the slower the high-pressure pump releases pressure.

[0030] In addition, an elastic connection component 9 is provided on the upper side of the impeller 4, and the elastic connection component 9 is installed on the top of the rotating shaft 3. A mounting seat 5 is installed at the pipe opening of the pressure relief pipe 2 close to the rotating shaft 3, and a column 6 is installed on the end surface of the mounting seat 5 away from the pressure relief pipe 2. A sound piece 7 is installed on the column 6 through a torsion spring, so that:

[0031] When the pressure relief amount of the high-pressure pump body 1 is within the preset range, the airflow causes the impeller 4 to rotate at a low speed, and the rotating shaft 3 rotates at a low speed with the elastic connection component 9, and the rotating elastic connection component 9 does not contact the clicker 7. The staff can know the pressure relief situation by observing the rotation speed of the impeller 4, that is, the faster the rotation speed, the faster the pressure relief of the high-pressure pump, and the slower the rotation speed, the slower the pressure relief of the high-pressure pump;

[0032] When the pressure relief amount of the high-pressure pump body 1 is outside the preset range, the airflow causes the impeller 4 to rotate at high speed, and the rotating shaft 3 rotates with the elastic connecting component 9 at high speed, so that the elastic connecting component 9 stretches under the action of excessive centrifugal force. The stretched elastic connecting component 9 strikes the clicker 7 during rotation to make a sound, thereby issuing a noise alarm. Even if the sensor equipment in the prior art fails, the alarm can be issued through the elastic connecting component 9 in cooperation with the clicker 7, and the alarm effect is more stable and reliable.

[0033] There are two elastic connection components 9 and two clickers 7, and the two elastic connection components 9 are symmetrically arranged 180 degrees about the rotating shaft 3, and the two clickers 7 are also symmetrically arranged 180 degrees about the rotating shaft 3, so that the force on the rotating shaft 3 is more uniform during rotation.

[0034] Regarding the elastic connection component 9, specifically, the elastic connection component 9 includes a limit slide rod 91, a limit sleeve 92 and an elastic stretching member 93. The limit slide rod 91 is fixed to the side end of the rotating shaft 3, the limit sleeve 92 is slidably sleeved on the outer side of the end of the limit slide rod 91 away from the rotating shaft 3, and the elastic stretching member 93 is fixed between the limit slide rod 91 and the limit sleeve 92. When the pressure relief amount of the high-pressure pump body 1 is outside the preset range, the airflow causes the impeller 4 to rotate at high speed, and the rotating shaft 3 rotates at high speed with the elastic connection component 9, so that the limit sleeve 92 stretches the elastic stretching member 93 under the action of excessive centrifugal force, and the limit sleeve 92 sliding outward strikes the click plate 7 to make a sound during the rotation process, thereby issuing a noise alarm.

[0035] Among them, the outer cover of the impeller 4 is provided with a transparent cover 8, which is fixed to the upper end of the mounting seat 5. The transparent cover 8 can effectively prevent external dust from falling on the impeller 4 and affecting the staff's viewing of the rotation state of the device, and the dust falling on the surface of the transparent cover 8 is easier to clean than the dust falling on the impeller 4.

[0036] In order to facilitate the staff to adjust the distance between the clicker 7 and the elastic connecting component 9 according to actual needs, an adjustment mechanism 10 is installed between the mounting seat 5 and the column 6. Specifically, the adjustment mechanism 10 includes a fixed seat 101, an adjustment seat 102, a bidirectional threaded rod 103 and a guide slide bar 104. The fixed seat 101 is fixed to the upper end of the mounting seat 5, the adjustment seat 102 is fixed to the lower end of the column 6, the bidirectional threaded rod 103 is rotatably installed on the fixed seat 101, the bidirectional threaded rod 103 threads through the adjustment seat 102, an adjustment handle 105 is installed at one end of the bidirectional threaded rod 103, the guide slide bar 104 is fixed on the fixed seat 101, and is arranged parallel to the bidirectional threaded rod 103, and the guide slide bar 104 slides through the adjustment seat 102.

[0037] The bidirectional threaded rod 103 is a rod body with opposite threaded sections symmetrically arranged at both ends, and the two adjustment seats 102 are symmetrically threadedly sleeved on the two threaded sections of the bidirectional threaded rod 103, so that when the bidirectional threaded rod 103 is rotated, the two adjustment seats 102 move closer or farther away synchronously.

[0038] Based on the coordination setting of the above structure, the staff can manually rotate the adjustment handle 105 to rotate the bidirectional threaded rod 103, so that the two adjustment seats 102 move closer or farther away synchronously, thereby simultaneously adjusting the distance between the two clickers 7 and the elastic connection assembly 9, thereby changing the alarm threshold.

[0039] The working principle of the utility model is as follows: during the pressure relief process of the high-pressure pump body 1, when the pressure relief amount of the high-pressure pump body 1 is within a preset range, the airflow causes the impeller 4 to rotate at a low speed, and the rotating shaft 3 rotates at a low speed with the elastic connecting component 9, and the rotating elastic connecting component 9 does not contact the clicker 7. The staff can know the pressure relief situation by observing the rotation speed of the impeller 4, that is, the faster the rotation speed, the faster the pressure relief of the high-pressure pump, and the slower the rotation speed, the slower the pressure relief of the high-pressure pump; when the pressure relief amount of the high-pressure pump body 1 is outside the preset range, the airflow causes the impeller 4 to rotate at a high speed, and the rotating shaft 3 rotates at a high speed with the elastic connecting component 9, so that the elastic connecting component 9 stretches under the action of excessive centrifugal force, and the stretched elastic connecting component 9 strikes the clicker 7 during the rotation process to make a sound, thereby issuing a noise alarm; when in use, the staff can manually rotate the adjusting handle 105 to rotate the bidirectional threaded rod 103, so that the two adjusting seats 102 are synchronously approached or moved away, thereby simultaneously adjusting the distance between the two clickers 7 and the elastic connecting component 9.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A central water outlet high-pressure pump for machine tools with a pressure-maintaining device, comprising a high-pressure pump body (1) with a pressure relief valve installed at a pressure relief port, and a pressure relief pipe (2) installed at the pressure relief port of the high-pressure pump body (1), characterized in that: Also includes: A rotating shaft (3) is rotatably mounted on the inner side of one end of the pressure relief pipe (2) away from the pressure relief port, the rotating shaft (3) extends to the outside of the pressure relief pipe (2), and an impeller (4) is mounted on the portion of the rotating shaft (3) located outside the pressure relief pipe (2); An elastic connection component (9) is provided on the upper side of the impeller (4), and the elastic connection component (9) is installed on the top end of the rotating shaft (3); A mounting seat (5) is installed at the pipe opening of one side of the pressure relief pipe (2) close to the rotating shaft (3), and a column (6) is installed at the end surface of the mounting seat (5) away from the pressure relief pipe (2). A sounding piece (7) is installed on the column (6) via a torsion spring, so that: When the pressure relief amount of the high-pressure pump body (1) is within a preset range, the airflow causes the impeller (4) to rotate at a low speed, and the rotating shaft (3) drives the elastic connection component (9) to rotate at a low speed, and the rotating elastic connection component (9) does not contact the clicker (7); When the pressure relief amount of the high-pressure pump body (1) is outside a preset range, the airflow causes the impeller (4) to rotate at a high speed, and the rotating shaft (3) causes the elastic connecting component (9) to rotate at a high speed, so that the elastic connecting component (9) is stretched under the action of excessive centrifugal force, and the stretched elastic connecting component (9) strikes the clicker (7) during the rotation process to produce a sound.

2. A center-discharge high-pressure pump for machine tools with a pressure-maintaining device according to claim 1, characterized in that: The elastic connection components (9) and the clickers (7) are both provided in pairs, and the two elastic connection components (9) are symmetrically arranged at one hundred and eighty degrees with respect to the rotating shaft (3), and the two clickers (7) are also symmetrically arranged at one hundred and eighty degrees with respect to the rotating shaft (3).

3. A center-discharge high-pressure pump for machine tools with a pressure-maintaining device according to claim 1, characterized in that: The elastic connection assembly (9) comprises a limiting slide bar (91), a limiting slide sleeve (92) and an elastic stretching member (93); the limiting slide bar (91) is fixed to the side end of the rotating shaft (3); the limiting slide sleeve (92) is slidably sleeved on the outer side of one end of the limiting slide bar (91) away from the rotating shaft (3); and the elastic stretching member (93) is fixed between the limiting slide bar (91) and the limiting slide sleeve (92).

4. A center-discharge high-pressure pump for machine tools with a pressure-maintaining device according to claim 1, characterized in that: The outer side cover of the impeller (4) is provided with a transparent cover (8), and the transparent cover (8) is fixed to the upper end of the mounting seat (5).

5. A center-discharge high-pressure pump for machine tools with a pressure-maintaining device according to claim 2, characterized in that: An adjustment mechanism (10) is installed between the mounting seat (5) and the column (6) to adjust the distance between the clicker (7) and the elastic connection component (9).

6. A center-discharge high-pressure pump for machine tools with a pressure-maintaining device according to claim 5, characterized in that: The adjustment mechanism (10) comprises a fixing seat (101), an adjustment seat (102), a bidirectional threaded rod (103) and a guide sliding rod (104); The fixed seat (101) is fixed to the upper end of the mounting seat (5), the adjusting seat (102) is fixed to the lower end of the column (6), the bidirectional threaded rod (103) is rotatably mounted on the fixed seat (101), the bidirectional threaded rod (103) is threadedly penetrated through the adjusting seat (102), an adjusting handle (105) is installed at one end of the bidirectional threaded rod (103), the guide slide rod (104) is fixed to the fixed seat (101) and is arranged parallel to the bidirectional threaded rod (103), and the guide slide rod (104) slides through the adjusting seat (102).

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