Performance testing machine for screw air compressor

Abstract

The utility model belongs to the technical field of air compressor performance testing machines, and particularly relates to a screw air compressor performance testing machine which comprises a bottom plate, a supporting column is fixedly connected to the bottom of the bottom plate, a guide supporting frame is fixedly connected to the right side of the bottom plate, and a screw air compressor placing plate is slidably connected into the guide supporting frame. A limiting plate is connected to the guide supporting frame through bolts, a reinforcing device is installed between the limiting plate and the screw air compressor containing plate, a first guide wheel and a second guide wheel are installed on the bottom plate, the first guide wheel is located over the screw air compressor containing plate, and the second guide wheel is located on the rear side of the first guide wheel. And the rear side of the bottom plate is connected with a fixing frame through bolts, the lowest height which can be reached by the screw air compressor placing plate can be reduced to the maximum extent through the driving mode, at the lowest height, a worker only needs to move the screw air compressor to the screw air compressor placing plate, and the labor amount and the carrying difficulty are reduced.

Description

Technical Field

[0001] The utility model relates to the field of air compressor performance testing machines, in particular to a screw air compressor performance testing machine. Background Art

[0002] Screw air compressors use pre-packaged configurations. Screw air compressors only require a single power connection and compressed air connection, and have a built-in cooling system, which greatly simplifies installation. Screw air compressors consistently provide high-quality compressed air for all walks of life with their high performance, high efficiency, maintenance-free, and high reliability. As a gas power source conversion device, screw air compressors are widely used in all aspects of production and life, and have many uses in construction, steel, mining, and chemical plants.

[0003] Since the performance of the screw air compressor needs to be tested and verified, a screw air compressor performance tester is needed. However, during the use of the existing screw air compressor performance tester, the screw air compressor often needs to be moved to the tester, and then the screw air compressor needs to be moved down after the test is completed. This operation is very inconvenient. Therefore, the utility model provides a screw air compressor performance tester. Utility Model Content

[0004] The purpose of the utility model is to provide a screw air compressor performance testing machine to solve the above problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screw air compressor performance tester, comprising a base plate, a pillar is fixedly connected to the bottom of the base plate, a guide support frame is fixedly connected to the right side of the base plate, a screw air compressor placement plate is slidably connected in the guide support frame, a limit plate is connected to the guide support frame by bolts, a reinforcement device is installed between the limit plate and the screw air compressor placement plate, a first guide wheel and a second guide wheel are installed on the base plate, the first guide wheel is located directly above the screw air compressor placement plate, the second guide wheel is located at the rear side of the first guide wheel, a fixing frame is connected to the rear side of the base plate by bolts, a take-up wheel is rotatably connected to the fixing frame, a pull rope is wound on the take-up wheel, and the pull rope is connected to the screw air compressor placement plate after passing through the second guide wheel and the first guide wheel in sequence, a lifting motor is connected to the fixing frame by bolts, and the lifting motor is transmission-connected to the take-up wheel, a test box is installed on the left side of the base plate, and a test mechanism is connected to the test box.

[0006] Preferably, the number of the guide support frames is four and they are distributed in a rectangular shape, and guide grooves are provided on the sides of the guide support frames that are close to each other, and the outer edge of the screw air compressor placement plate is located in the guide groove and is slidably connected to the guide groove.

[0007] Preferably, the limit plate is installed above the guide support frames on the front and rear sides by bolts, and the reinforcement device includes a reinforcement seat and a fastening bolt. A slot is opened on the reinforcement seat, and the slot is inserted between the limit plate and the screw air compressor placement plate. The bottom of the reinforcement seat is screwed with a fastening bolt.

[0008] Preferably, a rotating rod is fixedly connected to the lower end of the fastening bolt.

[0009] Preferably, the testing mechanism includes an air inlet pipe, an air outlet pipe and a sensor unit, the air inlet pipe is connected to the air inlet of the screw air compressor, the air outlet pipe is connected to the air outlet of the screw air compressor, the sensor unit includes a temperature sensor, a pressure sensor and a flow sensor, the air inlet pipe and the air outlet pipe are both equipped with a temperature sensor and a pressure sensor, the air inlet pipe is equipped with a flow sensor, a touch display screen is installed on the front side of the test box, and the air inlet pipe is connected to a filter.

[0010] Preferably, the screw air compressor placement plate is fixedly connected to a lifting frame, and the pull rope is connected to the middle part of the upper end of the lifting frame.

[0011] Preferably, a wire taking-up area is provided on the wire taking-up wheel, and the width of the wire taking-up area is 1.1-1.3 times the diameter of the pull rope.

[0012] Preferably, the bottom plate is connected to a vertical plate by bolts, the upper end of the vertical plate is connected to a horizontal plate by bolts, and the first guide wheel and the second guide wheel are installed below the horizontal plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1) In the utility model, the take-up wheel is driven to rotate by the lifting motor, and the pull rope is pulled to move the screw air compressor placement plate upward. The installation is convenient. Under the guidance of the first guide wheel and the second guide wheel, the lifting motor and the take-up wheel can be installed on the bottom plate. At the same time, this driving method can reduce the lowest height that the screw air compressor placement plate can reach to the greatest extent. At the lowest height, the staff can move the screw air compressor to the screw air compressor placement plate, reducing the labor and handling difficulty;

[0015] 2) The safety of the device is improved by setting a reinforcement device. When the screw air compressor placement plate moves upward to the limit plate, the screw air compressor placement plate is fixed due to the obstruction of the limit plate and the pulling force of the pull rope. At this time, the reinforcement seat is inserted between the limit plate and the screw air compressor placement plate to improve the safety of the screw air compressor placement plate. The screw air compressor placement plate is squeezed with the tightening bolts to improve the stability of the reinforcement seat after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is the first schematic diagram of the structure of the utility model;

[0017] Figure 2 This is the second schematic diagram of the structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the guide support frame of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the reinforcement device of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the take-up wheel of the utility model.

[0021] In the figure: 1. bottom plate; 2. pillar; 3. test box; 4. touch screen; 5. guide support frame; 6. guide groove; 7. screw air compressor placement plate; 8. horizontal plate; 9. vertical plate; 10. air inlet pipe; 11. air outlet pipe; 12. motor; 13. lifting frame; 14. limit plate; 15. reinforcement device; 16. reinforcement seat; 17. slot; 18. fastening bolt; 19. rotating rod; 20. pull rope; 21. first guide wheel; 22. second guide wheel; 23. fixed frame; 24. take-up wheel; 25. take-up area. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-5 The utility model provides a technical solution: a screw air compressor performance tester, including a base plate 1, a support column 2 is fixedly connected to the bottom of the base plate 1, a guide support frame 5 is fixedly connected to the right side of the base plate 1, a screw air compressor placement plate 7 is slidably connected to the guide support frame 5, the screw air compressor placement plate 7 can slide up and down, a limit plate 14 is connected to the guide support frame 5 by bolts, the screw air compressor placement plate 7 is located below the limit plate 14, a reinforcement device 15 is installed between the limit plate 14 and the screw air compressor placement plate 7, a first guide wheel 21 and a second guide wheel 22 are installed on the base plate 1, and the first guide wheel 21 is located below the limit plate 14. Directly above the screw air compressor placement plate 7, the second guide wheel 22 is located at the rear side of the first guide wheel 21, and the rear side of the base plate 1 is connected to a fixing frame 23 by bolts. A take-up wheel 24 is rotatably connected to the fixing frame 23, and a pull rope 20 is wound on the take-up wheel 24. The pull rope 20 passes through the second guide wheel 22 and the first guide wheel 21 in sequence and is connected to the screw air compressor placement plate 7. A lifting motor 12 is connected to the fixing frame 23 by bolts, and the lifting motor 12 is transmission-connected to the take-up wheel 24, and the take-up wheel 24 is driven to rotate by the lifting motor 12. A test box 3 is installed on the left side of the base plate 1, and the test box 3 is connected to a test mechanism.

[0027] There are four guide support frames 5 distributed in a rectangular shape. A guide groove 6 is provided on one side of the guide support frames 5 close to each other. The outer edge of the screw air compressor placement plate 7 is located in the guide groove 6 and is slidably connected to the guide groove 6.

[0028] The limit plate 14 is installed above the guide support frame 5 on both sides of the front and rear by bolts, and the reinforcement device 15 includes a reinforcement seat 16 and a fastening bolt 18. The reinforcement seat 16 is provided with a slot 17, and the slot 17 is inserted between the limit plate 14 and the screw air compressor placement plate 7. The fastening bolt 18 is screwed to the bottom of the reinforcement seat 16. The screw air compressor placement plate 7 is squeezed by the fastening bolt 18 to improve the stability of the reinforcement seat 16.

[0029] A rotating rod 19 is fixedly connected to the lower end of the fastening bolt 18 to facilitate the rotation of the fastening bolt 18 .

[0030] The test mechanism includes an air inlet pipe 10, an air outlet pipe 11 and a sensor unit. The air inlet pipe 10 is connected to the air inlet of the screw air compressor, and the air outlet pipe 11 is connected to the air outlet of the screw air compressor. The sensor unit includes a temperature sensor, a pressure sensor and a flow sensor. The air inlet pipe 10 and the air outlet pipe 11 are both equipped with temperature sensors and pressure sensors. The air inlet pipe 10 is equipped with a flow sensor. A touch screen 4 is installed on the front side of the test box 3. The air inlet pipe 10 is connected to a filter. By monitoring the changes in the inlet and outlet temperature, pressure and flow of the screw air compressor, performance tests of flow-pressure ratio and flow-efficiency can be performed. This is a conventional testing technology.

[0031] The screw air compressor placement plate 7 is fixedly connected to a lifting frame 13, and a pull rope 20 is connected to the middle part of the upper end of the lifting frame 13, so as to facilitate pulling the screw air compressor placement plate 7.

[0032] The take-up wheel 24 is provided with a take-up area 25 , and the width of the take-up area 25 is 1.1-1.3 times the diameter of the pull rope 20 , so that the take-up wheel 24 can stably reel the pull rope 20 outward.

[0033] The bottom plate 1 is connected to a vertical plate 9 by bolts, the upper end of the vertical plate 9 is connected to a horizontal plate 8 by bolts, and the first guide wheel 21 and the second guide wheel 22 are installed below the horizontal plate 8 .

[0034] Working principle: The lifting motor 12 drives the take-up wheel 24 to rotate, and the pull rope 20 is pulled to move the screw air compressor placement plate 7 upward. It is easy to install. Under the guidance of the first guide wheel 21 and the second guide wheel 22, the lifting motor 12 and the take-up wheel 24 can be installed on the bottom plate 1. At the same time, this driving method can reduce the lowest height that the screw air compressor placement plate 7 can reach to the greatest extent. At the lowest height, the staff can move the screw air compressor to the screw air compressor placement plate 7, reducing the labor and handling difficulty. After the test is completed, release the pull rope 20 Under the action of gravity, the screw air compressor placement plate 7 moves down and resets. The safety of the device is improved by setting the reinforcement device 15. When the screw air compressor placement plate 7 moves upward to the limit plate 14, due to the obstruction of the limit plate 14 and the pulling force of the pull rope 20, the screw air compressor placement plate 7 is fixed. At this time, the reinforcement seat 16 is inserted between the limit plate 14 and the screw air compressor placement plate 7, which can improve the safety of the screw air compressor placement plate 7. The screw air compressor placement plate 7 is squeezed with the fastening bolts 18 to improve the stability of the reinforcement seat 16 after installation.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw air compressor performance tester, comprising a base plate (1), wherein a support (2) is fixedly connected to the bottom of the base plate (1), characterized in that: The right side of the bottom plate (1) is fixedly connected to a guide support frame (5), a screw compressor placement plate (7) is slidably connected to the guide support frame (5), a limit plate (14) is bolted to the guide support frame (5), a reinforcement device (15) is installed between the limit plate (14) and the screw compressor placement plate (7), a first guide wheel (21) and a second guide wheel (22) are installed on the bottom plate (1), the first guide wheel (21) is located directly above the screw compressor placement plate (7), and the second guide wheel (22) is located at the rear of the first guide wheel (21). The rear side of the base plate (1) is connected to a fixing frame (23) by bolts, and a take-up wheel (24) is rotatably connected to the fixing frame (23). A pull rope (20) is wound around the take-up wheel (24), and the pull rope (20) passes through a second guide wheel (22) and a first guide wheel (21) in sequence and is connected to a screw air compressor placement plate (7). The fixing frame (23) is connected to a lifting motor (12) by bolts, and the lifting motor (12) is transmission-connected to the take-up wheel (24). A test box (3) is installed on the left side of the base plate (1), and the test box (3) is connected to a test mechanism.

2. A screw air compressor performance testing machine according to claim 1, characterized in that: The number of the guide support frames (5) is four and they are distributed in a rectangular shape. A guide groove (6) is provided on one side of the guide support frames (5) that is close to each other. The outer edge of the screw air compressor placement plate (7) is located in the guide groove (6) and is slidably connected to the guide groove (6).

3. A screw air compressor performance testing machine according to claim 2, characterized in that: The limit plate (14) is installed above the guide support frames (5) on the front and rear sides by bolts. The reinforcement device (15) includes a reinforcement seat (16) and a fastening bolt (18). The reinforcement seat (16) is provided with a slot (17). The slot (17) is inserted between the limit plate (14) and the screw air compressor placement plate (7). The bottom of the reinforcement seat (16) is screwed with a fastening bolt (18).

4. A screw air compressor performance testing machine according to claim 3, characterized in that: The lower end of the fastening bolt (18) is fixedly connected to a rotating rod (19).

5. The screw air compressor performance testing machine according to claim 1, characterized in that: The test mechanism comprises an air inlet pipe (10), an air outlet pipe (11) and a sensor unit. The air inlet pipe (10) is connected to an air inlet of a screw air compressor, and the air outlet pipe (11) is connected to an air outlet of the screw air compressor. The sensor unit comprises a temperature sensor, a pressure sensor and a flow sensor. The air inlet pipe (10) and the air outlet pipe (11) are both installed with a temperature sensor and a pressure sensor. The air inlet pipe (10) is installed with a flow sensor. A touch screen (4) is installed on the front side of the test box (3), and the air inlet pipe (10) is connected with a filter.

6. A screw air compressor performance testing machine according to claim 1, characterized in that: The screw air compressor placement plate (7) is fixedly connected to a lifting frame (13), and the pull rope (20) is connected to the middle part of the upper end of the lifting frame (13).

7. The screw air compressor performance testing machine according to claim 1, characterized in that: The wire taking-up wheel (24) is provided with a wire taking-up area (25), and the width of the wire taking-up area (25) is 1.1-1.3 times the diameter of the pull rope (20).

8. The screw air compressor performance testing machine according to claim 1, characterized in that: The bottom plate (1) is connected to a vertical plate (9) by bolts, the upper end of the vertical plate (9) is connected to a horizontal plate (8) by bolts, and the first guide wheel (21) and the second guide wheel (22) are installed below the horizontal plate (8).

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