Grinding roller

Abstract

The utility model provides a grinding roller which comprises a roller body and a vibration generating mechanism arranged in the roller body. The vibration generating mechanism comprises a center counterweight assembly, an edge counterweight assembly, an adjusting assembly used for adjusting the relative weight of the center counterweight assembly and the edge counterweight assembly and a driving piece used for driving the center counterweight assembly to rotate relative to the roller body, and the center counterweight assembly is rotationally connected to the middle of the roller body. The center counterweight assembly is fixedly connected to the roller body, a first cavity used for containing counterweight liquid is formed in the center counterweight assembly, the edge counterweight assembly is fixedly connected to the center counterweight assembly, a second cavity used for containing the counterweight liquid is formed in the edge counterweight assembly, the adjusting assembly is used for configuring the relative weight of the counterweight liquid in the first cavity and the second cavity, and the driving part is installed in the roller body. And the edge counterweight assembly is driven to rotate around the central axis of the roller body so as to generate vibration. The eccentric amount is adjusted by adjusting the relative weight of the counterweight liquid in the first cavity and the second cavity through the adjusting assembly, so that different amplitudes are achieved, and the vibration frequency is controlled through the driving piece.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a rolling roller. Background Art

[0002] In the construction of water conservancy projects, it is often necessary to build slope protection. During the construction of the slope protection, it is necessary to compact the soil layer by layer from the bottom of the slope protection. The cross-section of the slope protection is generally triangular. The bottom of the slope protection needs to have a large area of ​​soil layer compacted, and the bottom layer of the slope protection needs to bear more weight. Therefore, the slope protection needs to be compacted more tightly during the construction process. In the existing construction process, the bottom layer of the slope protection needs to be compacted by a rolling roller with a large amplitude and a low vibration frequency; the top of the slope protection needs to have a small area of ​​soil layer compacted. If a large amplitude and a low vibration frequency are used during the compaction process, it is easy to cause the side of the slope protection to collapse, which is not conducive to the compaction of the slope protection.

[0003] The vibration frequency and amplitude of the rolling roller in existing construction are limited. When the bottom layer of the slope protection needs to be compacted more tightly, the existing equipment can meet the compaction requirements by reducing the thickness of the soil and increasing the number of compaction times, but this will consume more time and increase the production cost. For the top layer of the slope protection, while being able to achieve the compaction purpose and prevent the collapse of the edge of the slope protection, the existing equipment can easily cause the soil layer at the edge of the slope protection to collapse due to the large fixed amplitude during construction. Therefore, the vibration function of the rolling roller is actually turned off during the construction process. In this way, without the support of vibration, the compaction effect is poor and multiple compaction passes are required, which prolongs the construction time and increases the construction cost.

[0004] In summary, there is an urgent need for a rolling roller to solve or at least partially solve the problems existing in the prior art. Utility Model Content

[0005] The utility model aims to provide a rolling roller, aiming to solve the problem that the existing rolling roller cannot adjust the vibration amplitude and vibration frequency. The specific technical solution is as follows:

[0006] A rolling roller comprises a roller body and a vibration generating mechanism, wherein the vibration generating mechanism is arranged in the roller body to excite the roller body, the vibration generating mechanism comprises a central counterweight assembly, an edge counterweight assembly, an adjusting assembly for adjusting the relative weight of the central counterweight assembly and the edge counterweight assembly, and a driving member for driving the central counterweight assembly to rotate relative to the roller body, the central counterweight assembly is rotatably connected to the middle of the roller body, a first cavity for containing counterweight liquid is provided in the central counterweight assembly, the edge counterweight assembly is fixedly connected to the central counterweight assembly, a second cavity for containing counterweight liquid is provided in the edge counterweight assembly, the adjusting assembly is connected between the first cavity and the second cavity to configure the relative weight of the counterweight liquid in the first cavity and the second cavity, the driving member is installed in the roller body, and the driving member is used to drive the edge counterweight assembly to rotate around the central axis of the roller body to vibrate.

[0007] Furthermore, the regulating assembly includes a connecting pipe and a delivery pump, wherein the delivery pump is arranged on the connecting pipe, one end of the connecting pipe is connected to the first cavity, and the other end of the connecting pipe is connected to the second cavity.

[0008] Preferably, the center counterweight assembly includes a first shell, a first piston and a first elastic member, the first shell is rotatably connected to the middle of the roller body, the first piston is slidably connected in the first shell, two first pistons are provided, the first cavity is surrounded by the first shell and the two first pistons, two first elastic members are provided, and the two first elastic members are respectively provided at both ends of the first shell, one end of the first elastic member abuts on the first shell, and the other end of the first elastic member abuts on the first piston; the edge counterweight assembly includes a second shell, a second piston and a second elastic member, the second piston is slidably connected in the second shell, two second pistons are provided, the second cavity is surrounded by the two second pistons and the second shell, two second elastic members are provided, and the two second elastic members are respectively provided at both ends of the second shell, one end of the second elastic member abuts on the second shell, and the other end of the second elastic member abuts on the second piston.

[0009] Preferably, the center counterweight assembly includes a first shell, a first piston and a first elastic member, the first shell is rotatably connected to the middle of the roller body, the first piston is slidably connected in the first shell, the first cavity is surrounded by the first piston and the first shell, the first elastic member is arranged in the first shell and is located on the side of the first piston away from the first cavity, one end of the first elastic member abuts on the first piston, and the other end of the first elastic member abuts on the inner wall of the first shell; the edge counterweight assembly includes a second shell, a second piston and a second elastic member, the second piston is slidably connected in the second shell, the second cavity is surrounded by the second piston and the second shell, the second elastic member is arranged in the second shell and is located on the side of the second piston away from the second cavity, one end of the second elastic member abuts on the second piston, and the other end of the second elastic member abuts on the inner wall of the second shell.

[0010] Furthermore, a first counterweight block is provided on the first shell, and the first counterweight block is located on a side away from the second shell.

[0011] Furthermore, a second counterweight and a fastener are provided at both ends of the roller body, and the second counterweight is detachably connected to the roller body via the fastener.

[0012] Furthermore, the second counterweight block includes a first half ring and a second half ring, the fastener is a screw, the first half ring and the second half ring are both provided with through holes, and the screws fasten the first half ring and the second half ring to the roller body through the through holes.

[0013] Furthermore, a plurality of second counterweight blocks are provided.

[0014] Furthermore, the second counterweight block is provided with a variety of weight specifications.

[0015] Furthermore, receiving grooves are arranged on both sides of the roller body, and the second counterweight blocks are located in the receiving grooves.

[0016] The application of the technical solution of the utility model has the following beneficial effects:

[0017] The rolling roller is installed on the roller. When the slope protection is rolled and compacted, the driving member inside the rolling roller drives the center counterweight assembly, the edge counterweight assembly and the adjustment assembly to rotate around the center axis of the roller body of the rolling roller. Because the center of mass of the whole composed of the center counterweight assembly, the edge counterweight assembly and the adjustment assembly deviates from the center axis of the roller body, vibration will be generated when the whole rotates; when it is necessary to increase the amplitude of vibration, the adjustment assembly will transport the counterweight liquid in the center counterweight assembly to the edge counterweight assembly, so that the center of mass is offset farther from the rotation center. At this time, when the whole is driven by the driving member to rotate, the amplitude of vibration is greater; when it is necessary to reduce the amplitude of vibration, it is only necessary to transport the counterweight liquid in the edge counterweight assembly to the center counterweight assembly through the adjustment assembly, so that the center of mass is offset closer to the rotation center; when it is necessary to increase the frequency of vibration, it is only necessary to adjust the rotation speed of the driving member. When constructing the bottom layer of the slope protection, the adjusting component transfers part of the balancing liquid in the central balancing weight component to the edge balancing weight component, so that the slope protection has a larger amplitude when being rolled and compacted, and the rotation speed of the driving component is reduced to reduce the vibration frequency. The high amplitude and low frequency enable the force generated during vibration to be transmitted to the deeper part of the soil layer, making the rolling and compaction tighter. When rolling and compacting the top of the slope protection, the adjusting component transfers part of the balancing liquid in the edge balancing weight component to the central balancing weight component, so that the slope protection has a smaller amplitude when being rolled and compacted. The rotation speed of the driving component is increased to increase the vibration frequency. The low amplitude and high frequency enable the force generated during vibration to be smaller and gathered near the surface of the soil layer, thereby avoiding excessive vibration and causing the top of the slope protection to collapse.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 This is one of the internal structure schematic diagrams of a rolling roller embodiment 1 of the utility model;

[0021] Figure 2This is the second schematic diagram of the internal structure of a rolling roller embodiment 1 of the utility model;

[0022] Figure 3 This is the third schematic diagram of the internal structure of a rolling roller embodiment 1 of the utility model;

[0023] Figure 4 This is a schematic diagram of the overall structure of a rolling roller embodiment 1 of the utility model;

[0024] Figure 5 It is a schematic diagram of the internal structure of a rolling roller embodiment 2 of the utility model.

[0025] Among them, 1. roller body; 11. second counterweight block; 111. first half ring; 112. second half ring; 12. fastener; 13. receiving groove; 2. vibration generating mechanism; 21. central counterweight assembly; 211. first cavity; 212. first shell; 2121. first counterweight block; 213. first piston; 214. first elastic member; 22. edge counterweight assembly; 221. second cavity; 222. second shell; 223. second piston; 224. second elastic member; 23. adjustment assembly; 231. connecting pipe; 232. delivery pump; 24. driving member. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below, and preferred embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] Embodiment 1:

[0029] See also Figure 1-Figure 4The present embodiment provides a rolling roller, including a roller body 1 and a vibration generating mechanism 2. The vibration generating mechanism 2 is arranged in the roller body 1 to excite the roller body 1, thereby causing the roller body 1 to vibrate. The vibration generating mechanism 2 includes a central counterweight component 21, an edge counterweight component 22, an adjustment component 23 and a driving member 24. Both ends of the central counterweight component 21 are rotatably connected to the middle of the roller body 1 through bearings. The edge counterweight component 22 is fixedly connected to the central counterweight component 21 and deviates from the center position of the roller body 1. The central counterweight component 21 is The component 21 is provided with a first cavity 211 for containing the weighting liquid, the edge weight component 22 is provided with a second cavity 221 for containing the weighting liquid, the adjustment component 23 is connected between the first cavity 211 and the second cavity 221, and the adjustment component 23 is used to configure the relative weight of the weighting liquid in the first cavity 211 and the second cavity 221. The driving member 24 is installed in the roller body 1, and the driving member 24 is used to drive the center configuration component to rotate and drive the edge weight component 22 to rotate around the central axis of the roller body 1 to vibrate. In this embodiment, the driving member 24 is a motor, and in other embodiments, the driving member 24 can also be a device or component that can provide power, such as a hydraulic motor.

[0030] It can be understood that when the amplitude of the rolling roller needs to be adjusted, the relative amount of the weight liquid in the center weight component 21 and the weight liquid in the edge weight component 22 is adjusted through the adjustment component 23. When the amplitude needs to be increased, the weight liquid in the center weight component 21 is transferred to the edge weight component 22 through the adjustment component 23. The center of gravity of the whole composed of the center weight component 21 and the edge weight component 22 deviates from the axis of the roller body 1, and a larger amplitude is generated during rotation; when the amplitude needs to be reduced, the weight liquid in the edge weight component 22 is transferred to the center weight component 21 through the adjustment component 23 to reduce the amplitude. When the vibration frequency needs to be increased, it is only necessary to increase the rotation speed of the driving member 24, and vice versa. Therefore, when constructing the bottom layer of the slope protection, large-amplitude and low-frequency vibration is used to allow the compaction force to penetrate into deeper soil layers. When constructing the top soil layer of the slope protection, the amplitude is reduced and the frequency of vibration is increased. On the premise of meeting the compaction requirements, excessive compaction can be prevented to prevent the edge of the top soil layer of the slope protection from collapsing.

[0031] Further, the adjustment component 23 includes a connecting pipe 231 and a delivery pump 232. The delivery pump 232 is installed in the middle of the connecting pipe 231. One end of the connecting pipe 231 is connected to the first cavity 211, and the other end of the connecting pipe 231 is connected to the second cavity 221. The weight liquid in the first cavity 211 is delivered to the second cavity 221, or the weight liquid in the second cavity 221 is delivered to the first cavity 211 through the delivery pump 232 and the connecting pipe 231, so as to adjust the relative amount of the weight liquid in the center weight component 21 and the edge weight component 22. In this embodiment, the delivery pump 232 is a gear pump. In other embodiments, the delivery pump 232 can also be a vane pump or a screw pump, etc., which can deliver materials in forward and reverse directions. The liquid in the first cavity 211 can be conveniently transported to the second cavity 221 or the liquid in the second cavity 221 can be conveniently transported to the first cavity 211 through the transport pump 232, so as to adjust the eccentricity of the whole composed of the central counterweight assembly 21, the edge counterweight assembly 22 and the adjustment assembly 23. The larger the eccentricity, the greater the centrifugal force generated by the rotation at the same speed and the greater the vibration amplitude.

[0032] Preferably, the central counterweight assembly 21 includes a first shell 212, a first piston 213 and a first elastic member 214. A bracket is provided in the middle of the roller body 1. Both ends of the first shell 212 are rotatably connected to the bracket in the middle of the roller body 1 through bearings. The first piston 213 is slidably connected in the first shell 212. The first piston 213 and the first shell 212 are sealed by a seal. Two first pistons 213 are provided, and the first cavity 211 is surrounded by the first shell 212 and the two first pistons 213. Two first elastic members 214 are provided, and the two first elastic members 214 are respectively provided at the two ends of the first shell 212. One end of the first elastic member 214 abuts against the inner wall of the first shell 212, and the other end of the first elastic member 214 abuts against the first piston 213. The connecting pipe 231 is connected to the middle of the first shell 212, and the first elastic member 214 and the first piston 213 are arranged one by one. When the delivery pump 232 delivers the balancing liquid in the first cavity 211 to the second cavity 221, the balancing liquid in the first cavity 211 is reduced. At this time, the two first pistons 213 move closer to the middle to prevent the first cavity 211 from being vacuumed due to the extraction of the balancing liquid, so that the first cavity 211 is always filled with the balancing liquid, so as to facilitate the balancing liquid to flow from the first cavity 211 to the connecting pipe 231 and the delivery pump 232. The edge counterweight assembly 22 includes a second shell 222, a second piston 223 and a second elastic member 224. The second piston 223 is slidably connected in the second shell 222. Two second pistons 223 are provided. The second cavity 221 is surrounded by two second pistons 223 and the second shell 222. Two second elastic members 224 are provided. The two second elastic members 224 are respectively provided at both ends of the second shell 222. One end of the second elastic member 224 abuts on the second shell 222, and the other end of the second elastic member 224 abuts on the second piston 223. The connecting pipe 231 is connected to the middle part of the second shell 222. When the delivery pump 232 delivers the weight liquid in the second cavity 221 to the first cavity 211, the weight liquid in the second cavity 221 decreases, and the two second pistons 223 move toward the middle to prevent the second cavity 221 from being vacuumed due to the weight liquid being drawn out, so that the second cavity 221 is always filled with weight liquid, so as to facilitate the weight liquid to flow from the second cavity 221 to the connecting pipe 231 and the delivery pump 232. In this embodiment, the first elastic member 214 and the second elastic member 224 are both compression coil springs. In other embodiments, the first elastic member 214 and the second elastic member 224 can also be other structures or components that can provide elastic potential energy, such as gas springs.

[0033] Furthermore, a first counterweight 2121 is provided on the first shell 212, and the first counterweight 2121 is located on a side away from the second shell 222. The first counterweight 2121 is provided on the first shell 212 away from the second counterweight 11 to balance the weight of the second shell 222, the second elastic member 224 and the second piston 223 in the edge counterweight assembly 22, so that the overall eccentricity composed of the middle counterweight assembly, the edge counterweight assembly 22 and the adjustment assembly 23 has a small eccentricity value, or the center of gravity of the overall is located on the axis of the roller body 1, and at this time, when the driving member 24 drives the overall rotation, substantially no vibration occurs.

[0034] Furthermore, both ends of the roller body 1 are provided with a second counterweight 11 and a fastener 12, and the second counterweight 11 is detachably connected to the roller body 1 through the fastener 12. A plurality of second counterweights 11 are provided, and the weight of the rolling roller is increased by the second counterweight 11 to adapt to the bottom of the slope protection that needs to be strengthened and compacted; in addition, when constructing the top of the slope protection, it is necessary to remove part or all of the counterweights to reduce the compaction strength to adapt to the compaction of the top of the slope protection. The second counterweight 11 includes a first half ring 111 and a second half ring 112, and the fastener 12 is a screw. The first half ring 111 and the second half ring 112 are both provided with through holes, and the roller body 1 is provided with threaded holes. The screws pass through the through holes and are connected to the threaded holes on the roller body 1, thereby fastening the first half ring 111 and the second half ring 112 to the roller body 1. The roller body 1 is generally installed on the roller through the mounting shafts at both ends, and the second counterweight 11 is arranged in a semi-ring shape to facilitate the installation and disassembly of the second counterweight 11. If the second counterweight 11 is arranged in a ring shape, the rolling roller needs to be removed from the roller before the second counterweight can be installed, which is very inconvenient.

[0035] Furthermore, the second counterweight 11 is provided with a variety of weight specifications, such as 10 kg, 20 kg, and 50 kg, which can be freely combined according to actual needs to flexibly adjust the weight of the counterweight.

[0036] Furthermore, receiving grooves 13 are provided on both sides of the roller body 1, and the second counterweight 11 is located in the receiving grooves 13. When the rolling roller is performing the rolling operation, the second counterweight 11 is prevented from directly contacting the soil layer that needs to be rolled and compacted. On the one hand, the second counterweight 11 is prevented from being subjected to the interaction force of the soil layer and causing the screw to break. On the other hand, too much soil is prevented from sticking to the second counterweight 11, which is inconvenient for later cleaning.

[0037] The working principle of the technical solution of the utility model is: when the roller rolls and compacts the soil layer at the bottom of the slope protection, large-scale and low-frequency compaction is required, the second counterweights on both sides of the roller body 1 are adjusted, and the number of second counterweights is increased to increase the overall weight of the roller body 1, so that the delivery pump 232 works, and the counterweight liquid in the first cavity 211 of the central counterweight assembly 21 is delivered to the edge counterweight assembly 22, and the counterweight liquid in the central counterweight assembly 21 flows to the second cavity 221 of the edge counterweight assembly 22 through the connecting pipe 231 and the delivery pump 232. At this time, the counterweight liquid in the first cavity 211 is reduced, the two first pistons 213 move toward the middle, and the total length of the two first elastic members 214 is extended; the counterweight liquid in the second cavity 221 increases, the two second pistons 223 move toward both sides, and the total length of the two elastic members is shortened. At this time, the center of the whole composed of the central counterweight assembly 21, the edge counterweight assembly 22 and the conveying assembly deviates from the central axis of the roller body 1, and the less counterweight liquid in the first cavity 211 and the more counterweight liquid in the second cavity 221, the farther the center of the whole deviates from the central axis of the roller body 1, and the greater the amplitude of vibration when the driving member 24 drives the whole to rotate; otherwise, the smaller. The faster the driving member 24 rotates, the faster the vibration frequency of the whole; the slower the driving member 24 rotates, the slower the vibration frequency of the whole. Therefore, when a large amplitude and a low frequency are required, more counterweight liquid in the first cavity 211 is transported to the second cavity 221, so that the driving member 24 maintains a low speed to adapt to the rolling and compaction at the bottom of the slope protection; when a small amplitude and a high frequency are required, more counterweight liquid in the second cavity 221 flows into the first cavity 211, so that the driving member 24 maintains a relatively high speed to adapt to the rolling and compaction at the top of the slope protection.

[0038] Embodiment 2:

[0039] The difference between this embodiment and embodiment 1 is that, referring to Figure 5In this embodiment, the central counterweight assembly 21 includes a first shell 212, a first piston 213 and a first elastic member 214. The first shell 212 is rotatably connected to the middle of the roller body 1. The first piston 213 is slidably connected in the first shell 212. The first cavity 211 is surrounded by the first piston 213 and the first shell 212. The first elastic member 214 is arranged in the first shell 212 and is located on the side of the first piston 213 away from the first cavity 211. One end of the first elastic member 214 abuts against the first piston 213, and the other end of the first elastic member 214 abuts against the first piston 213. On the inner wall of the first shell 212; the edge counterweight assembly 22 includes a second shell 222, a second piston 223 and a second elastic member 224, the second piston 223 is slidably connected in the second shell 222, the second cavity 221 is surrounded by the second piston 223 and the second shell 222, the second elastic member 224 is arranged in the second shell 222, and is located on the side of the second piston 223 away from the second cavity 221, one end of the second elastic member 224 abuts on the second piston 223, and the other end of the second elastic member 224 abuts on the inner wall of the second shell 222. When the weight liquid in the first cavity 211 is transported to the second cavity 221, the weight liquid in the first cavity 211 becomes less, and the first piston 213 moves toward the first cavity 211 under the elastic force of the first elastic member 214, and the first cavity 211 becomes smaller; the weight liquid in the second cavity 221 becomes more, and the second piston 223 moves toward the direction away from the first cavity 211, and the second cavity 221 becomes larger.

[0040] The remaining details are basically the same as those in Example 1 and will not be described again.

[0041] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rolling roller, characterized in that: It comprises a roller body (1) and a vibration generating mechanism (2), wherein the vibration generating mechanism (2) is arranged in the roller body (1) to excite the roller body (1). The vibration generating mechanism (2) comprises a central counterweight assembly (21), an edge counterweight assembly (22), an adjusting assembly (23) for adjusting the relative weight of the central counterweight assembly (21) and the edge counterweight assembly (22), and a driving member (24) for driving the central counterweight assembly (21) to rotate relative to the roller body (1). The central counterweight assembly (21) is rotatably connected to the middle of the roller body (1), and a first cavity (211) for containing a counterweight liquid is provided in the central counterweight assembly (21). The edge counterweight assembly (22) is fixedly connected to the central counterweight assembly (21), and a second cavity (221) for containing counterweight liquid is provided in the edge counterweight assembly (22). The adjustment component (23) is connected between the first cavity (211) and the second cavity (221) to configure the relative weight of the weight liquid in the first cavity (211) and the second cavity (221). The driving member (24) is installed in the roller body (1), and the driving member (24) is used to drive the edge counterweight assembly (22) to rotate around the central axis of the roller body (1) to generate vibration.

2. A rolling roller according to claim 1, characterized in that: The regulating assembly (23) comprises a connecting pipe (231) and a delivery pump (232); the delivery pump (232) is arranged on the connecting pipe (231); one end of the connecting pipe (231) is connected to the first cavity (211); and the other end of the connecting pipe (231) is connected to the second cavity (221).

3. A rolling roller according to claim 1, characterized in that: The central counterweight assembly (21) comprises a first housing (212), a first piston (213) and a first elastic member (214). The first shell (212) is rotatably connected to the middle part of the roller body (1). The first piston (213) is slidably connected in the first housing (212), two first pistons (213) are provided, the first cavity (211) is surrounded by the first housing (212) and the two first pistons (213), two first elastic members (214) are provided, and the two first elastic members (214) are respectively provided at two ends of the first housing (212), one end of the first elastic member (214) abuts against the first housing (212), and the other end of the first elastic member (214) abuts against the first piston (213), and the first elastic member (214) and the first piston (213) are arranged one by one; The edge counterweight assembly (22) comprises a second housing (222), a second piston (223) and a second elastic member (224). The second piston (223) is slidably connected in the second shell (222), two second pistons (223) are provided, and the second cavity (221) is surrounded by the two second pistons (223) and the second shell (222). Two second elastic members (224) are provided, and the two second elastic members (224) are respectively provided at two ends of the second shell (222), one end of the second elastic member (224) abuts against the second shell (222), and the other end of the second elastic member (224) abuts against the second piston (223).

4. A rolling roller according to claim 1, characterized in that: The central counterweight assembly (21) comprises a first housing (212), a first piston (213) and a first elastic member (214). The first shell (212) is rotatably connected to the middle part of the roller body (1). The first piston (213) is slidably connected in the first housing (212); the first cavity (211) is surrounded by the first piston (213) and the first housing (212); the first elastic member (214) is arranged in the first housing (212) and is located on a side of the first piston (213) away from the first cavity (211); one end of the first elastic member (214) abuts against the first piston (213), and the other end of the first elastic member (214) abuts against the inner wall of the first housing (212); The edge counterweight assembly (22) comprises a second housing (222), a second piston (223) and a second elastic member (224). The second piston (223) is slidably connected in the second shell (222); the second cavity (221) is surrounded by the second piston (223) and the second shell (222); the second elastic member (224) is arranged in the second shell (222) and is located on the side of the second piston (223) away from the second cavity (221); one end of the second elastic member (224) abuts against the second piston (223), and the other end of the second elastic member (224) abuts against the inner wall of the second shell (222).

5. A rolling roller according to claim 3 or 4, characterized in that: A first counterweight (2121) is provided on the first shell (212), and the first counterweight (2121) is located on a side away from the second shell (222).

6. A laminating roller according to any one of claims 1 to 4, characterized in that: A second counterweight (11) and a fastener (12) are provided at both ends of the roller body (1), and the second counterweight (11) is detachably connected to the roller body (1) via the fastener (12).

7. A rolling roller according to claim 6, characterized in that: The second counterweight (11) comprises a first half ring (111) and a second half ring (112); the fastener (12) is a screw; the first half ring (111) and the second half ring (112) are both provided with through holes; the screw fastens the first half ring (111) and the second half ring (112) to the roller body (1) through the through holes.

8. A laminating roller according to claim 6, characterized in that: A plurality of the second counterweight blocks (11) are provided.

9. A laminating roller according to claim 6, characterized in that: The second counterweight (11) is provided with a variety of weight specifications.

10. A laminating roller according to claim 6, characterized in that: Accommodation grooves (13) are provided on both sides of the roller body (1), and the second counterweight block (11) is located in the accommodation grooves (13).

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