Hydraulic oil cylinder structure and pole piece rolling device

Abstract

The utility model provides a hydraulic oil cylinder structure and a pole piece rolling device. The hydraulic oil cylinder structure comprises a first cylinder barrel body, a second cylinder barrel body, a piston body and a proportional valve group, the first cylinder barrel body is provided with a cylinder barrel cavity, a first flow channel and a second flow channel, and the cylinder barrel cavity communicates with the first flow channel; the second cylinder barrel penetrates through the cylinder barrel cavity and is in sliding connection with the first cylinder barrel, a piston cavity is formed in the second cylinder barrel, and the second runner communicates with the piston cavity; the piston body penetrates through the piston cavity and is in sliding connection with the second cylinder barrel body; the electromagnetic reversing valve, the proportional pressure reducing valve and the electromagnetic valve are all connected with the mounting seat; the mounting seat is connected with the first cylinder barrel, a first oil guide channel and a second oil guide channel are formed in the mounting seat, the first oil guide channel is communicated with the first flow channel, the second oil guide channel is communicated with the second flow channel, the electromagnetic valve is communicated with the first oil guide channel, and the electromagnetic reversing valve and the proportional pressure reducing valve are both communicated with the second oil guide channel. When the hydraulic oil cylinder structure is arranged, the space occupancy rate is low.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of pole piece rolling devices, and particularly relates to a hydraulic cylinder structure and a pole piece rolling device. BACKGROUND

[0002] The pole piece rolling device is an industrial device for compacting the pole piece after coating and drying by double-roller rolling. The pole piece rolling device is widely used in the fields of new energy vehicles, digital cameras, smart phones, unmanned aerial vehicles, backup power supplies, and aerospace, etc. The pole piece rolling device is composed of a device main body and a hydraulic cylinder structure, etc. The hydraulic cylinder structure is connected with the device main body.

[0003] The hydraulic cylinder structure of the related art comprises a cylinder barrel, a piston assembly, a floating assembly, and a locking portion. The cylinder barrel is provided with a piston cavity. The inner wall of the piston cavity is provided with a locking groove. The piston assembly is arranged in the piston cavity and is in sliding connection with the cylinder barrel. The piston assembly is provided with a receiving cavity in communication with the locking groove. The floating assembly is provided with a lock head portion. The locking portion is arranged in the receiving cavity and is connected with the piston assembly. The locking portion is used for pushing the lock head portion into the locking groove when the lock head portion is laterally inserted into the receiving cavity, as disclosed in Chinese Patent No. CN118669385A.

[0004] However, the piston assembly is arranged in the piston cavity and is in sliding connection with the cylinder barrel, so that the piston assembly reciprocates along the axial direction of the cylinder barrel. The proportional valve group controls the reciprocating movement of the piston assembly through an electric signal, that is, the proportional valve group controls the hydraulic cylinder structure to complete the action through an electric signal. Therefore, the hydraulic cylinder structure needs to be connected with the proportional valve group. The proportional valve group comprises an electromagnetic reversing valve, a proportional pressure reducing valve, an electromagnetic valve, and other components. The components of the proportional valve group are dispersedly arranged, so that the proportional valve group needs to occupy a large space. Therefore, the hydraulic cylinder structure needs to occupy a large space when arranged, so that the space occupancy rate of the hydraulic cylinder structure is high when arranged. UTILITY MODEL CONTENT

[0005] The present disclosure aims to overcome the deficiencies in the prior art and provide a hydraulic cylinder structure and a pole piece rolling device with a low space occupancy rate when arranged.

[0006] The purpose of the present disclosure is achieved by the following technical solutions:

[0007] A hydraulic cylinder structure comprises:

[0008] A first cylinder barrel body is provided with a cylinder cavity, a first flow channel, and a second flow channel. The cylinder cavity is in communication with the first flow channel.

[0009] A second cylinder barrel body is arranged in the cylinder cavity and is in sliding connection with the first cylinder barrel body. The second cylinder barrel body is provided with a piston cavity. The second flow channel is in communication with the piston cavity.

[0010] A piston body is arranged in the piston cavity and is in sliding connection with the second cylinder body, and the piston body is used to abut against the first cylinder body when sliding to the bottom wall of the piston cavity;

[0011] The proportional valve group comprises a mounting seat, an electromagnetic reversing valve, a proportional pressure reducing valve and an electromagnetic valve, the mounting seat is connected with the first cylinder body, the mounting seat is provided with a first oil guide channel and a second oil guide channel, the first oil guide channel is in communication with the first flow channel, the second oil guide channel is in communication with the second flow channel, the electromagnetic valve is in communication with the first oil guide channel, and the electromagnetic reversing valve and the proportional pressure reducing valve are in communication with the second oil guide channel.

[0012] In one of the embodiments, the first cylinder body is provided with a connecting part, the connecting part is arranged in the cylinder cavity, the second cylinder body is further provided with a sliding through hole, the sliding through hole is in communication with the piston cavity, the connecting part is arranged in the sliding through hole and is in sliding connection with the second cylinder body, and the piston body is used to abut against the connecting part when sliding to the bottom wall of the piston cavity.

[0013] In one of the embodiments, the connecting part and the first cylinder body are in an integral forming structure.

[0014] In one of the embodiments, the connecting part is provided with a third flow channel, and the third flow channel is in communication with the second flow channel and the piston cavity, respectively.

[0015] In one of the embodiments, a first sealing ring is arranged at the connection between the first cylinder body and the second cylinder body.

[0016] In one of the embodiments, the proportional valve group further comprises a pressure sensor, and the pressure sensor is connected with the mounting seat.

[0017] In one of the embodiments, the proportional valve group further comprises an accumulator, and the accumulator is connected with the mounting seat.

[0018] In one of the embodiments, a second sealing ring is arranged at the connection between the second cylinder body and the piston body.

[0019] In one of the embodiments, the second cylinder body is in an integral forming structure.

[0020] A pole piece rolling device comprises the hydraulic oil cylinder structure of any one of the above embodiments.

[0021] Compared with the prior art, this disclosure has at least the following advantages:

[0022] 1. Since the solenoid directional valve, proportional pressure reducing valve, and solenoid valve are all connected to the mounting base, and the mounting base has a first guide oil passage and a second guide oil passage, the solenoid valve is connected to the first guide oil passage, and the solenoid directional valve and proportional pressure reducing valve are both connected to the second guide oil passage. When the solenoid valve receives an electrical signal, the solenoid valve is used to open or close the first guide oil passage. The first guide oil passage is connected to the first flow channel, and the first flow channel is connected to the cylinder cavity, so that hydraulic oil flows into the cylinder cavity along the first guide oil passage and the first flow channel, causing the hydraulic oil to push the second cylinder body to move relative to the first cylinder body. When the solenoid directional valve and the proportional pressure reducing valve simultaneously receive electrical signals, the solenoid directional valve and the proportional pressure reducing valve work together to open or close the second guide oil passage. The second guide oil passage is connected to the second flow channel, and the second flow channel is connected to the piston cavity, so that hydraulic oil flows into the piston cavity along the second guide oil passage and the second flow channel, causing the hydraulic oil to push the piston body to move relative to the second cylinder body, completing the operation of the hydraulic cylinder structure. That is, the proportional valve group controls the hydraulic cylinder structure to complete the action through electrical signals.

[0023] 2. Since the electromagnetic directional valve, proportional pressure reducing valve, and solenoid valve are all connected to the mounting base, they are integrated and connected to the mounting base. The mounting base is connected to the first cylinder body, so that the electromagnetic directional valve, proportional pressure reducing valve, and solenoid valve are integrated and set on one side of the first cylinder body through the mounting base. This allows the components of the proportional valve group to be centrally arranged through the mounting base, thereby solving the problem of the dispersed arrangement of the components of the proportional valve group in the prior art. This makes the structure of the proportional valve group compact, reduces the space required by the proportional valve group, and reduces the space required for the hydraulic cylinder structure to be arranged, thus resulting in a low space occupancy rate when arranging the hydraulic cylinder structure. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a hydraulic cylinder structure according to one embodiment;

[0026] Figure 2 for Figure 1 A schematic diagram of the hydraulic cylinder structure from another perspective;

[0027] Figure 3 for Figure 1A structural diagram of the hydraulic cylinder structure from one perspective;

[0028] Figure 4 A structural diagram of the hydraulic cylinder structure from one perspective; Figure 3 A structural diagram of the hydraulic cylinder structure from one perspective;

[0029] Figure 5 A structural diagram of the hydraulic cylinder structure from one perspective; DETAILED DESCRIPTION

[0030] For the purpose of the present disclosure, reference will be made to the accompanying drawings in which preferred embodiments of the present disclosure are illustrated. It should be understood that the present disclosure can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present disclosure to those skilled in the art.

[0031] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are used for illustration only and are not intended to limit the present disclosure.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0033] As Figures 1 to 5As shown, the hydraulic cylinder structure 10 of one embodiment includes a first cylinder body 100, a second cylinder body 200, a piston body 300, and a proportional valve group 400. The first cylinder body 100 is provided with a cylinder cavity 110, a first flow channel 120, and a second flow channel 130. The cylinder cavity 110 is in communication with the first flow channel 120. The second cylinder body 200 is arranged in the cylinder cavity 110 and is in sliding connection with the first cylinder body 100. The second cylinder body 200 is provided with a piston cavity 210. The second flow channel 130 is in communication with the piston cavity 210. The piston body 300 is arranged in the piston cavity 210 and is in sliding connection with the second cylinder body 200. When the piston body 300 slides to the bottom wall of the piston cavity 210, the piston body 300 abuts against the first cylinder body 100. The proportional valve group 400 includes a mounting seat 410, an electromagnetic reversing valve 420, a proportional pressure reducing valve 430, and an electromagnetic valve 440. The electromagnetic reversing valve 420, the proportional pressure reducing valve 430, and the electromagnetic valve 440 are all connected with the mounting seat 410. The electromagnetic reversing valve 420 is connected with the proportional pressure reducing valve 430. The electromagnetic valve 440 is arranged adjacent to the electromagnetic reversing valve 420. The mounting seat 410 is connected with the first cylinder body 100. The mounting seat 410 is provided with a first oil guide channel 411 and a second oil guide channel 412. The first oil guide channel 411 is in communication with the first flow channel 120. The second oil guide channel 412 is in communication with the second flow channel 130. The electromagnetic valve 440 is in communication with the first oil guide channel 411. The electromagnetic reversing valve 420 and the proportional pressure reducing valve 430 are both in communication with the second oil guide channel 412.

[0034] In the present embodiment, when the electromagnetic valve 440 receives an electric signal, the electromagnetic valve 440 is used to open or close the first oil guide channel 411. The first oil guide channel 411 is in communication with the first flow channel 120. The first flow channel 120 is in communication with the cylinder cavity 110. In this way, hydraulic oil flows into the cylinder cavity 110 along the first oil guide channel 411 and the first flow channel 120, so that the hydraulic oil drives the second cylinder body 200 to move relative to the first cylinder body 100. When the electromagnetic reversing valve 420 and the proportional pressure reducing valve 430 simultaneously receive an electric signal, the electromagnetic reversing valve 420 and the proportional pressure reducing valve 430 jointly act to open or close the second oil guide channel 412. The second oil guide channel 412 is in communication with the second flow channel 130. The second flow channel 130 is in communication with the piston cavity 210. In this way, hydraulic oil flows into the piston cavity 210 along the second oil guide channel 412 and the second flow channel 130, so that the hydraulic oil drives the piston body 300 to move relative to the second cylinder body 200.

[0035] It should be noted that the working principle of the electromagnetic reversing valve 420, the working principle of the proportional pressure reducing valve 430, and the working principle of the electromagnetic valve 440 are all prior art.

[0036] The hydraulic cylinder structure 10 described above, since the electromagnetic reversing valve 420, the proportional pressure reducing valve 430 and the electromagnetic valve 440 are connected with the mounting base 410, the mounting base 410 is provided with the first oil guide 411 and the second oil guide 412, the electromagnetic valve 440 is communicated with the first oil guide 411, the electromagnetic reversing valve 420 and the proportional pressure reducing valve 430 are communicated with the second oil guide 412, when the electromagnetic valve 440 receives the electric signal, the electromagnetic valve 440 is used for opening or closing the first oil guide 411, the first oil guide 411 is communicated with the first flow channel 120, the first flow channel 120 is communicated with the cylinder cavity 110, so that the hydraulic oil flows into the cylinder cavity 110 along the first oil guide 411 and the first flow channel 120, so that the hydraulic oil drives the second cylinder body 200 to move relative to the first cylinder body 100; when the electromagnetic reversing valve 420 and the proportional pressure reducing valve 430 receive the electric signal at the same time, the electromagnetic reversing valve 420 and the proportional pressure reducing valve 430 jointly act to open or close the second oil guide 412, the second oil guide 412 is communicated with the second flow channel 130, the second flow channel 130 is communicated with the piston cavity 210, so that the hydraulic oil flows into the piston cavity 210 along the second oil guide 412 and the second flow channel 130, so that the hydraulic oil drives the piston body 300 to move relative to the second cylinder body 200, completing the operation of the hydraulic cylinder structure 10, that is, the proportional valve group 400 controls the hydraulic cylinder structure 10 to complete the action through the electric signal;

[0037] Since the electromagnetic reversing valve 420, the proportional pressure reducing valve 430 and the electromagnetic valve 440 are connected with the mounting base 410, so that the electromagnetic reversing valve 420, the proportional pressure reducing valve 430 and the electromagnetic valve 440 are integrated on the mounting base 410, the mounting base 410 is connected with the first cylinder body 100, so that the electromagnetic reversing valve 420, the proportional pressure reducing valve 430 and the electromagnetic valve 440 are integrated on one side of the first cylinder body 100 through the mounting base 410, so that the components of the proportional valve group 400 are arranged concentratedly through the mounting base 410, thereby solving the problem of dispersed arrangement of the components of the proportional valve group 400 in the prior art, so that the structure of the proportional valve group 400 is compact, the proportional valve group 400 needs to occupy smaller space, and the hydraulic cylinder structure 10 needs to occupy smaller space when arranged, thereby reducing the space occupancy rate of the hydraulic cylinder structure 10 when arranged.

[0038] As shown in FIG. Figure 4 In one embodiment, the first cylinder body 100 is provided with a connecting portion 140, the connecting portion 140 is located in the cylinder cavity 110, the second cylinder body 200 is further provided with a sliding through hole 220, the sliding through hole 220 is communicated with the piston cavity 210, the connecting portion 140 is arranged in the sliding through hole 220 and is connected with the second cylinder body 200 in a sliding mode, and the piston body 300 is used for abutting against the connecting portion 140 when sliding to the bottom wall of the piston cavity 210.

[0039] In one of the embodiments, the connecting portion 140 is integrally formed with the first cylinder body 100.

[0040] As shown in the drawings, Figure 4 In one of the embodiments, the connecting portion 140 is provided with a third flow channel 141, which is in communication with the second flow channel 130 and the piston cavity 210, respectively.

[0041] As shown in the drawings, Figure 4 In one of the embodiments, a first sealing ring 150 is arranged at the connecting portion between the first cylinder body 100 and the second cylinder body 200.

[0042] As shown in the drawings, Figures 1 to 3 In one of the embodiments, the proportional valve group 400 further comprises a pressure sensor 450, which is connected with the mounting base 410.

[0043] As shown in the drawings, Figures 1 to 3 In one of the embodiments, the proportional valve group 400 further comprises an accumulator 460, which is connected with the mounting base 410.

[0044] As shown in the drawings, Figure 4 In one of the embodiments, a second sealing ring 230 is arranged at the connecting portion between the second cylinder body 200 and the piston body 300.

[0045] In one of the embodiments, the second cylinder body 200 is integrally formed.

[0046] The present disclosure also provides a pole piece rolling device comprising the hydraulic cylinder structure 10 of any of the above embodiments.

[0047] Compared with the prior art, the present disclosure has at least the following advantages:

[0048] 1. Since the solenoid directional valve 420, the proportional pressure reducing valve 430, and the solenoid valve 440 are all connected to the mounting base 410, and the mounting base 410 has a first oil guide passage 411 and a second oil guide passage 412, the solenoid valve 440 is connected to the first oil guide passage 411, and the solenoid directional valve 420 and the proportional pressure reducing valve 430 are both connected to the second oil guide passage 412. When the solenoid valve 440 receives an electrical signal, the solenoid valve 440 is used to open or close the first oil guide passage 411. The first oil guide passage 411 is connected to the first flow channel 120, and the first flow channel 120 is connected to the cylinder chamber 110, so that hydraulic oil flows into the cylinder chamber 110 along the first oil guide passage 411 and the first flow channel 120, thereby pushing the hydraulic oil... The second cylinder body 200 moves relative to the first cylinder body 100. When the solenoid directional valve 420 and the proportional pressure reducing valve 430 simultaneously receive electrical signals, the solenoid directional valve 420 and the proportional pressure reducing valve 430 work together to open or close the second oil guide passage 412. The second oil guide passage 412 is connected to the second flow passage 130, and the second flow passage 130 is connected to the piston chamber 210, so that hydraulic oil flows into the piston chamber 210 along the second oil guide passage 412 and the second flow passage 130, so that the hydraulic oil pushes the piston body 300 to move relative to the second cylinder body 200, thus completing the operation of the hydraulic cylinder structure 10. That is, the proportional valve group 400 controls the hydraulic cylinder structure 10 to complete the action through electrical signals.

[0049] 2. Since the electromagnetic directional valve 420, the proportional pressure reducing valve 430, and the solenoid valve 440 are all connected to the mounting base 410, the electromagnetic directional valve 420, the proportional pressure reducing valve 430, and the solenoid valve 440 are integrated and connected to the mounting base 410. The mounting base 410 is connected to the first cylinder body 100, so that the electromagnetic directional valve 420, the proportional pressure reducing valve 430, and the solenoid valve 440 are integrated and set on one side of the first cylinder body 100 through the mounting base 410. This allows the components of the proportional valve group 400 to be centrally arranged through the mounting base 410, thereby solving the problem of the dispersed arrangement of the components of the proportional valve group 400 in the prior art. This makes the structure of the proportional valve group 400 compact, reduces the space required by the proportional valve group 400, and reduces the space required by the hydraulic cylinder structure 10 when it is arranged, thus resulting in a low space occupancy rate of the hydraulic cylinder structure 10 when it is arranged.

[0050] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A hydraulic cylinder structure, characterized by comprising: The hydraulic cylinder structure comprises a first cylinder body, a second cylinder body, a piston body, and a proportional valve group. The first cylinder body is provided with a cylinder cavity, a first flow channel, and a second flow channel. The second cylinder body is arranged in the cylinder cavity and is in sliding connection with the first cylinder body. The piston body is arranged in the piston cavity and is in sliding connection with the second cylinder body. The proportional valve group comprises a mounting seat, an electromagnetic reversing valve, a proportional pressure reducing valve, and an electromagnetic valve.

2. The hydraulic cylinder structure according to claim 1, characterized by The mounting seat is connected with the first cylinder body.

3. The hydraulic cylinder structure according to claim 2, characterized in that, The mounting seat is provided with a first oil guide channel and a second oil guide channel.

4. The hydraulic cylinder structure according to claim 2, characterized by The first oil guide channel is in communication with the first flow channel.

5. The hydraulic ram structure according to claim 1, wherein The second oil guide channel is in communication with the second flow channel.

6. The hydraulic ram structure according to claim 1, wherein The electromagnetic valve is in communication with the first oil guide channel.

7. The hydraulic ram structure according to claim 1, wherein The electromagnetic reversing valve and the proportional pressure reducing valve are in communication with the second oil guide channel.

8. The hydraulic ram structure according to claim 1, wherein The first cylinder body is provided with a connecting portion.

9. The hydraulic ram structure according to claim 1, wherein The connecting portion is arranged in the cylinder cavity.

10. An electrode sheet rolling device characterized by comprising: The second cylinder body is provided with a sliding through hole. The sliding through hole is in communication with the piston cavity. The connecting portion is arranged in the sliding through hole and is in sliding connection with the second cylinder body. The piston body is in abutment with the connecting portion when sliding to the bottom wall of the piston cavity. The connecting portion and the first cylinder body are in one-piece structure. The connecting portion is provided with a third flow channel. The third flow channel is in communication with the second flow channel and the piston cavity. A first sealing ring is arranged at the connection between the first cylinder body and the second cylinder body. The proportional valve group further comprises a pressure sensor. The pressure sensor is connected with the mounting seat. The proportional valve group further comprises an accumulator. The accumulator is connected with the mounting seat. A second sealing ring is arranged at the connection between the second cylinder body and the piston body. The second cylinder body is in one-piece structure. The hydraulic cylinder structure comprises any one of claims 1 to 9.

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