Flow resistance clamp

Abstract

The utility model discloses a flow resistance clamp in the technical field of carbon felt testing equipment, which comprises a fixing clamp, a main shaft connected to the right end in the fixing clamp, a driving mechanism arranged between the main shaft and the fixing clamp, a force transmission shaft screwed to the top of the main shaft, a carbon felt pressing block connected to the top of the force transmission shaft, and a carbon felt body placed on the top of the carbon felt pressing block. A matching block is installed on the outer side of the carbon felt pressing block, the bottom of the matching block is connected with the top of the fixing clamp, a cover plate is installed on the top of the matching block, a flowing channel is formed in the matching block, a flow guide groove body is formed in the bottom of the cover plate, and the flow guide groove body is communicated with the flowing channel. Through mutual cooperation of the fixing clamp, the cover plate, the driving mechanism, the main shaft, the carbon felt pressing block, the flow guide groove body, the force transmission shaft and the flow channel, the driving mechanism drives the main shaft to rotate and further drives the force transmission shaft and the carbon felt pressing block to move up and down, so that the thickness of a carbon felt body is compressed; and the carbon felt body can be conveniently subjected to test tests with multiple compression ratios.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of carbon felt testing equipment, especially to flow resistance clamp. BACKGROUND

[0002] The liquid flow battery is a large-scale energy storage battery which realizes charge and discharge through the transition of vanadium ions in different valence states by electrons, and a plurality of single cells are combined to form an electric pile, and the positive electrode and the negative electrode of the liquid flow battery are made of carbon felt, and the carbon felt has many voids. Electrolyte passes through the carbon felt from bottom to top under the action of a pump, and the electrolyte generates chemical reaction to produce electric energy. The greater the compression amount of the carbon felt is, the smaller the porosity is, and the smaller the space for the electrolyte to flow in the carbon felt is, and the greater the resistance is. Under a certain flow rate of the electrolyte, the greater the resistance is, the higher the performance requirement for the circulating pump is, and the greater the work of the circulating pump is, which directly affects the energy efficiency of the all-vanadium liquid flow battery energy storage system. Therefore, the permeability of the carbon felt is an important parameter directly affecting the flow resistance of the liquid flow battery, and testing the permeability of the carbon felt under different types and different compression amounts is of great significance for the selection of the carbon felt, the determination of the compression amount of the carbon felt in the electric pile assembly and system integration.

[0003] The prior art cannot automatically adjust the compression rate of the carbon felt, and a plurality of auxiliary clamps are required to test the carbon felt under multiple compression rates, and the clamp needs to be replaced every time a test is performed, which is time-consuming and laborious and brings inconvenience to the operator. UTILITY MODEL CONTENTS

[0004] In order to solve the problem that the prior art cannot automatically adjust the compression rate of the carbon felt, a plurality of auxiliary clamps are required to test the carbon felt under multiple compression rates, and the clamp needs to be replaced every time a test is performed, which is time-consuming and laborious and brings inconvenience to the operator, the utility model provides a flow resistance clamp.

[0005] The utility model provides a flow resistance clamp adopts the following technical scheme:

[0006] The flow resistance clamp comprises a fixed clamp, a main shaft is connected to the right end in the fixed clamp, a driving mechanism is arranged between the main shaft and the fixed clamp, a transmission shaft is screwed on the top of the main shaft, a sealing device is arranged between the transmission shaft and the fixed clamp, a carbon felt pressing block is connected to the top of the transmission shaft, a carbon felt body is placed on the top of the carbon felt pressing block, a matching block is installed on the outside of the carbon felt pressing block, the bottom of the matching block is connected with the top of the fixed clamp, a cover plate is installed on the top of the matching block, a flow channel is arranged in the matching block, and a flow guide groove body is arranged on the bottom of the cover plate and communicates with the flow channel.

[0007] Through the above technical scheme, the operator introduces liquid from the right end opening of the flow channel, the liquid flows out from the opening at the left end of the flow channel along the flow channel and the flow guide groove body, and at the same time, the driving mechanism drives the main shaft to rotate, and since the main shaft is threadedly connected with the force transmission shaft, when the main shaft rotates, the force transmission shaft moves up and down, thereby compressing the thickness of the carbon felt body, so that the carbon felt body can be conveniently tested at multiple compression rates.

[0008] Optionally, the driving mechanism comprises a speed reducer, the speed reducer is installed at the left end of the top of the fixed clamp, a servo motor is installed at the top of the speed reducer, a driving shaft is installed at the bottom of the speed reducer, a transmission gear is sleeved on the outer side of the driving shaft and the main shaft, and a belt is sleeved on the outer side of the two groups of transmission gears.

[0009] Through the above technical scheme, when the servo motor starts, the driving shaft is driven to rotate by the speed reducer, the driving shaft drives the transmission gear at the left end to rotate, and the transmission gear at the left end drives the transmission gear at the right end to rotate through the belt, so that the main shaft can be driven to rotate.

[0010] Optionally, a dust cover is installed at the bottom of the fixed clamp, and the belt and the transmission gear are located inside the dust cover.

[0011] Through the above technical scheme, the belt and the transmission gear can be protected by the dust cover.

[0012] Optionally, a self-lubricating shaft sleeve is arranged at the right end inside the fixed clamp and is sleeved on the outer side of the main shaft.

[0013] Through the above technical scheme, the frictional force of the main shaft during rotation is reduced.

[0014] Optionally, a snap spring is arranged at one end of the main shaft close to the bottom of the fixed clamp.

[0015] Through the above technical scheme, the movement range of the main shaft is limited.

[0016] Optionally, a plane bearing is arranged at one end of the self-lubricating shaft sleeve away from the snap spring, and the inner side of the plane bearing is connected with the outer side of the main shaft.

[0017] Through the above technical scheme, the frictional force of the main shaft is reduced.

[0018] Optionally, the sealing device comprises a sealing gasket, the sealing gasket is installed between the force transmission shaft and the fixed clamp, a first sealing ring is arranged between the sealing gasket and the fixed clamp, and a second sealing ring is arranged between the sealing gasket and the force transmission shaft.

[0019] By adopting the technical scheme, the sealing condition of sufficient movement range can be provided under the up and down movement of the transmission shaft, rusting is prevented, and the service life of the transmission shaft is prolonged.

[0020] Optionally, one side of the fixing clamp is provided with a drainage channel.

[0021] By adopting the technical scheme, the leaked water can be drained.

[0022] In summary, the utility model has at least one of the following beneficial effects:

[0023] Through the cooperation of the fixing clamp, the cover plate, the driving mechanism, the main shaft, the carbon felt pressing block, the flow guide groove body, the transmission shaft and the flow channel, the driving mechanism drives the main shaft to rotate, the main shaft drives the transmission shaft to move up and down, and then drives the carbon felt pressing block to move up and down to compress the thickness of the carbon felt body, so that the carbon felt body can be conveniently tested at multiple compression rates.

[0024] Since the flow channel is in a high-pressure environment, part of the liquid may enter the transmission shaft through the gap between the cooperating block and the carbon felt pressing block. Through the cooperation of the sealing gasket, the first sealing ring and the second sealing ring, the sealing condition of sufficient movement range can be provided under the up and down movement of the transmission shaft, rusting is prevented, and the service life of the transmission shaft is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0026] Figure 1 It is a perspective structural schematic view of the utility model;

[0027] Figure 2 It is a sectional view structural schematic view of the utility model;

[0028] Figure 3 It is a right view sectional view structural schematic view of the utility model;

[0029] Figure 4 It is a Figure 3 It is an enlarged structural schematic view of A in the utility model;

[0030] Figure 5 It is a top view structural schematic view of the utility model;

[0031] Figure 6 It is a rear view structural schematic view of the utility model;

[0032] Figure 7 The utility model discloses a Figure 6 The left view structural schematic diagram of the utility model discloses a

[0033] Figure 8 The utility model discloses an explosion structural schematic diagram.

[0034] In the drawing: 1, fixed clamp;2, dust cover;3, fit block;4, cover plate;5, drive mechanism;501, drive shaft;502, speed reducer;503, servo motor;504, belt;505, transmission gear;6, main shaft;7, carbon felt pressing block;8, guide groove body;9, sealing device;901, sealing gasket;902, first sealing ring;903, second sealing ring;10, self-lubricating shaft sleeve;11, clamping spring;12, force transmission shaft;13, plane bearing;14, flow channel;15, drainage channel;16, carbon felt body. DETAILED DESCRIPTION

[0035] The following will be combined with the attached Figures 1-8 The utility model makes further detailed explanation.

[0036] Please see the attached drawings in the specification Figure 2 And Figure 7 An embodiment provided by the utility model: flow resistance clamp, including fixed clamp 1, the right end in fixed clamp 1 is connected with main shaft 6, and one side of fixed clamp 1 is provided with drainage channel 15. The seepage water can be discharged.

[0037] Please see the attached drawings in the specification Figure 1 、 Figure 2 、 Figure 3 And Figure 8 Main shaft 6 is provided with drive mechanism 5 between fixed clamp 1, and drive mechanism 5 includes speed reducer 502, and speed reducer 502 is installed at the left end on the top of fixed clamp 1, servo motor 503 is installed at the top of speed reducer 502, drive shaft 501 is installed at the bottom of speed reducer 502, and the outer side of drive shaft 501 and main shaft 6 is all fixedly sleeved with transmission gear 505, and the outer side transmission of two groups of transmission gears 505 is sleeved with belt 504.Servo motor 503 is started through speed reducer 502 and drives drive shaft 501 to rotate, and drive shaft 501 rotates and drives the rotation of left end transmission gear 505, and left end transmission gear 505 rotates and drives the rotation of right end transmission gear 505 through belt 504, thereby can drive the rotation of main shaft 6.

[0038] Please see the attached drawings in the specification Figure 1 、 Figure 2 And Figure 6The bottom of the fixed clamp 1 is provided with a dust cover 2, and the belt 504 and the transmission gear 505 are located inside the dust cover 2. Thus, the belt 504 and the transmission gear 505 can be protected by the dust cover 2. The right end of the fixed clamp 1 is provided with a self-lubricating bushing 10, and the self-lubricating bushing 10 is sleeved on the outside of the main shaft 6. Thus, the friction of the main shaft 6 during rotation is reduced.

[0039] Please refer to the drawings in the specification Figure 2 and Figure 3 The bottom of the fixed clamp 1 is provided with a dust cover 2, and the belt 504 and the transmission gear 505 are located inside the dust cover 2. Thus, the belt 504 and the transmission gear 505 can be protected by the dust cover 2. The right end of the fixed clamp 1 is provided with a self-lubricating bushing 10, and the self-lubricating bushing 10 is sleeved on the outside of the main shaft 6. Thus, the friction of the main shaft 6 during rotation is reduced.

[0040] Please refer to the drawings in the specification Figure 3 、 Figure 4 and Figure 8 The top of the main shaft 6 is screwed with a transmission shaft 12, and the transmission shaft 12 and the fixed clamp 1 are provided with a sealing device 9. The sealing device 9 includes a sealing gasket 901, which is installed between the transmission shaft 12 and the fixed clamp 1. A first sealing ring 902 is arranged between the sealing gasket 901 and the fixed clamp 1, and a second sealing ring 903 is arranged between the sealing gasket 901 and the transmission shaft 12. The sealing condition of sufficient movement range can be provided under the up-and-down movement of the transmission shaft 12, rusting can be prevented, and the service life of the transmission shaft 12 is prolonged.

[0041] Please refer to the drawings in the specification Figure 3 、 Figure 5 、 Figure 7 and Figure 8 The top of the transmission shaft 12 is fixedly connected with a carbon felt pressing block 7, the top of the carbon felt pressing block 7 is placed with a carbon felt body 16, the outside of the carbon felt pressing block 7 is installed with a matching block 3, the bottom of the matching block 3 is screwed with the top of the fixed clamp 1, the top of the matching block 3 is screwed with a cover plate 4, and the inside of the matching block 3 is provided with a flow channel 14. The bottom of the cover plate 4 is provided with a flow guide groove body 8, and the flow guide groove body 8 communicates with the flow channel 14.

[0042] Working principle: in use, the carbon felt body 16 and the flow guide groove body 8 are placed on the top of the carbon felt pressing block 7 in turn, then the cover plate 4 is covered on the top of the matching block 3 through the bolt, then the operator introduces liquid from the right end opening of the flow channel 14, and the liquid flows out from the left end opening of the flow channel 14 along the flow channel 14 and the flow guide groove body 8.

[0043] Meanwhile, the servo motor 503 is opened, and the servo motor 503 drives the driving shaft 501 to rotate through the speed reducer 502 when working, the driving shaft 501 drives the left end transmission gear 505 to rotate, the left end transmission gear 505 drives the right end transmission gear 505 to rotate through the belt 504, and then the main shaft 6 can be driven to rotate, since the main shaft 6 is threadedly connected with the transmission shaft 12, when the main shaft 6 rotates, the transmission shaft 12 is driven to move upwards, the transmission shaft 12 moves upwards and drives the carbon felt pressing block 7 to move upwards, when the servo motor 503 reversely rotates, the main shaft 6 is reversely driven and the transmission shaft 12 is driven to move downwards, the transmission shaft 12 moves downwards and drives the carbon felt pressing block 7 to move downwards, the carbon felt pressing block 7 moves upwards and downwards to compress the thickness of the carbon felt body 16, and the carbon felt body 16 is conveniently tested at multiple compression rates.

[0044] When the inside of the flow channel 14 is filled with liquid, since the flow channel 14 is a high-pressure environment, part of the liquid can enter the transmission shaft 12 through the gap between the matching block 3 and the carbon felt pressing block 7, the sealing gasket 901 is fixed on the fixed clamp 1 through the first sealing ring 902, and the sealing gasket 901 is fixed on the transmission shaft 12 through the second sealing ring 903, so that the sealing condition of sufficient movement range can be provided under the up-and-down movement of the transmission shaft 12, rusting is prevented, and the service life of the transmission shaft 12 is prolonged.

[0045] The above are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A flow resistance clamp comprising a stationary clamp (1), characterized in that: The right end of the fixed clamp (1) is connected with a main shaft (6), a driving mechanism (5) is arranged between the main shaft (6) and the fixed clamp (1), the top of the main shaft (6) is screwed with a force transmission shaft (12), a sealing device (9) is arranged between the force transmission shaft (12) and the fixed clamp (1), the top of the force transmission shaft (12) is connected with a carbon felt pressing block (7), the top of the carbon felt pressing block (7) is placed with a carbon felt body (16), the outer side of the carbon felt pressing block (7) is mounted with a matching block (3), the bottom of the matching block (3) is connected with the top of the fixed clamp (1), the top of the matching block (3) is mounted with a cover plate (4), the inside of the matching block (3) is provided with a flow channel (14), the bottom of the cover plate (4) is provided with a flow guide groove body (8), and the flow guide groove body (8) communicates with the flow channel (14).

2. The flow resistance clamp of claim 1, wherein: The driving mechanism (5) comprises a speed reducer (502), the speed reducer (502) is installed at the left end of the top of the fixed clamp (1), the top of the speed reducer (502) is mounted with a servo motor (503), the bottom of the speed reducer (502) is mounted with a driving shaft (501), the outer sides of the driving shaft (501) and the main shaft (6) are both sleeved with a transmission gear (505), and the outer sides of the two groups of transmission gears (505) are sleeved with a belt (504).

3. The flow resistance clamp of claim 2, wherein: The bottom of the fixed clamp (1) is mounted with a dust cover (2), and the belt (504) and the transmission gear (505) are located in the inside of the dust cover (2).

4. The flow resistance fixture of claim 1, wherein: The right end of the inside of the fixed clamp (1) is provided with a self-lubricating shaft sleeve (10), and the self-lubricating shaft sleeve (10) is sleeved on the outer side of the main shaft (6).

5. The flow resistance clamp of claim 4, wherein: One end of the fixed clamp (1) close to the main shaft (6) is provided with a snap spring (11).

6. The flow resistance clamp of claim 5, wherein: The end of the self-lubricating shaft sleeve (10) away from the snap spring (11) is provided with a plane bearing (13), and the inner side of the plane bearing (13) is connected with the outer side of the main shaft (6).

7. The flow resistance fixture of claim 1, wherein: The sealing device (9) comprises a sealing gasket (901), the sealing gasket (901) is installed between the force transmission shaft (12) and the fixed clamp (1), a first sealing ring (902) is arranged between the sealing gasket (901) and the fixed clamp (1), and a second sealing ring (903) is arranged between the sealing gasket (901) and the force transmission shaft (12).

8. The flow resistance fixture of claim 1, wherein: One side of the fixed clamp (1) is provided with a drainage channel (15).

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