Wood chip double-roller roller press
By employing a sinusoidal wave wear-resistant plate and hydraulic control design in a wood chip twin-roll press, the problems of roller wear and wood chip crushing caused by the toothed structure have been solved, achieving more efficient wood chip crushing and extending roller life.
Patent Information
- Application Number
- CN202423230559.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing wood chip twin-roll presses, the toothed rollers have excessively sharp surfaces, leading to severe wear, reduced service life, and easy crushing of wood chips, resulting in excess sawdust and an inability to effectively crack the wood chips.
It adopts a wear-resistant plate design, the roller surface has a sinusoidal waveform structure, and is equipped with a hydraulic system and scraper frame. The roller gap and rotation direction are controlled by hydraulic cylinders, combined with motor drive components, to achieve effective crushing of wood chips.
It reduces roller wear, increases service life, lowers the probability of wood chips being crushed, reduces the generation of excess wood chips, and improves crushing efficiency.
Smart Images
Figure CN223573399U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to wood chip processing technical field, and specifically is a kind of wood chip double-roll roller press. BACKGROUND
[0002] In the existing overlarge wood chip processing technology, wood chip double-roll roller press is usually used to process overlarge wood chip, and the processed wood chip is cracked, and the cracked wood chip enters the next process, i.e., wood chip chemical cooking, so that chemicals can more easily and fully enter wood fiber to reduce chemical consumption. However, in the existing wood chip double-roll roller press, the roller surface of the roller body is generally in a tooth-shaped structure. After long-term use of the wood chip double-roll roller press, the tooth-shaped roller surface is too sharp, which not only causes a certain degree of wear to the roller body, thereby reducing the service life of the roller body, but also makes the wood chip easily crushed, fails to achieve the effect of cracking, and generates excess wood chips. SUMMARY
[0003] To solve the above problems, the utility model provides a wood chip double-roll roller press, which aims to solve the problems that the tooth-shaped roller surface of the roller body is too sharp, which not only causes a certain degree of wear to the roller body, thereby reducing the service life of the roller body, but also makes the wood chip easily crushed, fails to achieve the effect of cracking, and generates excess wood chips.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A wood chip double-roll roller press comprises a rack, a fixed roller body, a movable roller body, a fixed roller driving assembly, a movable roller driving assembly, a plurality of wear-resistant plates, a swing arm, and at least two hydraulic cylinders.
[0006] The top and bottom of the rack are respectively provided with an inlet and an outlet. The fixed roller driving assembly, the movable roller driving assembly, and the two hydraulic cylinders are arranged outside the rack, and the fixed roller body, the movable roller body, and the swing arm are arranged inside the rack. The two ends of the fixed roller body are rotatably mounted on the left and right sides of the rack, and the two ends of the swing arm are pivotably mounted on the left and right sides of the rack. The movable roller body is mounted on the swing arm, and the driving ends of the two hydraulic cylinders are connected to the two ends of the swing arm. The fixed roller body and the movable roller body are arranged side by side, and the fixed roller body and the movable roller body are respectively detachably mounted with a plurality of wear-resistant plates. The surfaces of the wear-resistant plates are in a sinusoidal wave structure.
[0007] The fixed roller driving assembly is connected to the fixed roller body, and the movable roller driving assembly is connected to the movable roller body. The fixed roller driving assembly is used to drive the fixed roller body to rotate, and the movable roller driving assembly is used to drive the movable roller body to rotate.
[0008] Preferably, two scraper racks are further included, both of which are mounted to the bottom of the frame and are located below the fixed roller body and the movable roller body respectively.
[0009] Preferably, two speed sensors are further included, both of which are arranged inside the frame, one of which is used to detect the rotating speed of the fixed roller body and the other of which is used to detect the rotating speed of the movable roller body.
[0010] Preferably, the fixed roller body includes a fixed roller shaft and a fixed roller cylinder, and the movable roller body includes a movable roller shaft and a movable roller cylinder; the fixed roller cylinder is sleeved on the fixed roller shaft, and the movable roller cylinder is sleeved on the movable roller shaft.
[0011] Preferably, the fixed roller driving assembly includes a first motor and a first speed reducer, and the movable roller driving assembly includes a second motor and a second speed reducer; the driving end of the first motor is connected to the input end of the first speed reducer, and the output end of the first speed reducer is connected to the fixed roller shaft; the driving end of the second motor is connected to the input end of the second speed reducer, and the output end of the second speed reducer is connected to the movable roller shaft.
[0012] Preferably, a plurality of door plates and a plurality of door handles are further included, the plurality of door plates are arranged on the top of the frame in a flip manner, and the plurality of door handles are mounted on the respective door plates.
[0013] The technical scheme provided by the embodiment of the application can have the following beneficial effects:
[0014] By detachably mounting a plurality of wear-resistant plates on the fixed roller body and the movable roller body respectively, and by making the surfaces of the plurality of wear-resistant plates have a sine wave structure, compared with a conventional roller body roller surface with a tooth-shaped structure, the wood chips can effectively reduce the wear of the roller body roller surface, thereby improving the service life of the roller body, and the wood chips are not easily crushed, and the generation of excess wood chips is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a top view of a wood chip double-roller pressing machine;
[0016] Figure 2 is a sectional view of one of the embodiments of the utility model;
[0017] Figure 3 is a schematic view of one of the embodiments of the utility model;
[0018] Figure 4 is a schematic view of one of the embodiments of the utility model.
[0019] Wherein, 1, rack; 2, fixed roller body; 3, movable roller body; 4, fixed roller drive assembly; 5, movable roller drive assembly; 6, wear plate; 7, swing arm; 8, hydraulic cylinder; 9, hydraulic station; 10, speed sensor; 11, feed inlet; 12, door plate; 13, door handle; 14, scraper frame; 21, fixed roller shaft; 22, fixed roller cylinder; 31, movable roller shaft; 32, movable roller cylinder; 41, first motor; 42, first speed reducer; 51, second motor; 52, second speed reducer. DETAILED DESCRIPTION
[0020] The technical scheme of the utility model is further illustrated below in combination with the drawings and through specific embodiments.
[0021] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0022] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0023] In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "splicing", "connection" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, or can be connected inside two elements.
[0024] A wood chip double-roller press machine comprises a rack 1, a fixed roller body 2, a movable roller body 3, a fixed roller drive assembly 4, a movable roller drive assembly 5, a plurality of wear plates 6, a swing arm 7 and at least two hydraulic cylinders 8.
[0025] The top and bottom of the rack 1 are respectively provided with an inlet 11 and an outlet (not marked in the figure); the fixed roller driving assembly 4, the movable roller driving assembly 5 and the two hydraulic cylinders 8 are all arranged outside the rack 1, the fixed roller body 2, the movable roller body 3 and the swing arm 7 are all arranged inside the rack 1, the two ends of the fixed roller body 2 are respectively rotatably mounted on the left and right sides of the rack 1, the two ends of the swing arm 7 are respectively front and back swingably mounted on the left and right sides of the rack 1, the movable roller body 3 is mounted on the swing arm 7, and the driving ends of the two hydraulic cylinders 8 are respectively connected to the two ends of the swing arm 7; the fixed roller body 2 and the movable roller body 3 are arranged side by side, and a plurality of wear plates 6 are detachably mounted on the fixed roller body 2 and the movable roller body 3 respectively, and the surfaces of the plurality of wear plates 6 are all in a sine wave structure.
[0026] The fixed roller driving assembly 4 is connected with the fixed roller body 2, the movable roller driving assembly 5 is connected with the movable roller body 3, the fixed roller driving assembly 4 is used for driving the fixed roller body 2 to rotate, and the movable roller driving assembly 5 is used for driving the movable roller body 3 to rotate.
[0027] The wood chip double-roller press machine of the scheme, in the embodiment, as shown in Figures 1-3 The wood chip double-roller press machine is also provided with a hydraulic station 9, and the hydraulic station 9 is communicated with the two hydraulic cylinders 8 through pipelines (not marked in the figure). In the initial state, the gap between the fixed roller body 3 and the fixed roller body 2 is relatively large, when it is needed to crack large wood chips, first start the hydraulic station 9, so that the two hydraulic cylinders 8 work, thereby pushing the swing arm 7 to swing towards the fixed roller body 2, thereby driving the movable roller body 3 to move towards the fixed roller body 2, so that the fixed roller body 3 and the fixed roller body 2 maintain a normal gap of 3-5 mm, at this time the pressure in the hydraulic cylinder 8 is maintained at 120 Bar, the hydraulic station 9 will be delayed for 1 minute and then closed, locking the hydraulic cylinder 8, thereby locking the pushing force of the movable roller body 3, then start the fixed roller driving assembly 4 and the movable roller driving assembly 5, the fixed roller driving assembly 4 drives the fixed roller body 2 to rotate clockwise, the movable roller driving assembly 5 drives the movable roller body 3 to rotate counterclockwise, finally the oversized wood chips are put into the inside of the rack 1 through the inlet 11, the oversized wood chips pass through the gap between the fixed roller body 2 and the movable roller body 3, and the reverse rotation of the fixed roller body 2 and the movable roller body 3 can crack the oversized wood chips, and the cracked large wood chips are discharged from the outlet 12 to the outside of the rack 1 and enter the next process.
[0028] To further explain, in this embodiment, 88 wear-resistant plates 6 are detachably installed on both the fixed roller body 2 and the moving roller body 3. The wear-resistant plates 6 protect the fixed roller body 2 and the moving roller body 3 from wear and corrosion, thereby enhancing their service life. When a wear-resistant plate 6 is damaged, a new wear-resistant plate 6 can be replaced in a timely manner.
[0029] This solution involves detachably installing several wear-resistant plates 6 on the fixed roller body 2 and the moving roller body 3, and the surfaces of the wear-resistant plates 6 are all sinusoidal wave structures. Compared with the traditional toothed roller surface, this not only effectively reduces the wear of wood chips on the roller surface, thereby improving the service life of the roller, but also makes the wood chips less likely to be crushed, reducing the generation of excess wood chips.
[0030] Preferably, it further includes two scraper frames 14, both of which are installed at the bottom of the frame 1, and are respectively located below the fixed roller body 2 and the moving roller body 3. In this embodiment, as... Figure 3 As shown, when the fixed roller 2 and the moving roller 3 are performing large wood chip crushing, the two scraper frames 14 can simultaneously remove the wood chips adhering to the two wear-resistant plates 6, so that the surface of the wear-resistant plate 6 maintains an efficient working surface.
[0031] Preferably, it further includes two speed sensors 10, both of which are disposed inside the frame 1. One speed sensor 10 is used to detect the rotational speed of the stationary roller 2, and the other speed sensor 10 is used to detect the rotational speed of the moving roller 3.
[0032] In this embodiment, as Figure 4 As shown, both the fixed roller 2 and the moving roller 3 rotate at a speed of 55 rpm under normal conditions. Since both the fixed roller 2 and the moving roller 3 are equipped with speed sensors 10, their rotational speeds are monitored in real time. When both speed sensors 10 detect that the fixed roller 2 and the moving roller 3 are at low speeds, the entire double-roll press for this sheet material will stop to prevent malfunctions and damage.
[0033] Preferably, the fixed roller body 2 includes a fixed roller shaft 21 and a fixed roller cylinder 22, and the moving roller body 3 includes a moving roller shaft 31 and a moving roller cylinder 32; the fixed roller cylinder 22 is sleeved on the fixed roller shaft 21, and the moving roller cylinder 32 is sleeved on the moving roller shaft 31. In this embodiment, as... Figure 2 As shown, the rotation of the fixed roller shaft 21 drives the rotation of the fixed roller cylinder 22. Similarly, the rotation of the moving roller shaft 31 drives the rotation of the moving roller cylinder 32.
[0034] Preferably, the fixed roller driving assembly 4 comprises a first motor 41 and a first speed reducer 42, and the movable roller driving assembly 5 comprises a second motor 51 and a second speed reducer 52; the driving end of the first motor 41 is connected to the input end of the first speed reducer 42, and the output end of the first speed reducer 42 is connected to the fixed roller shaft 21; the driving end of the second motor 51 is connected to the input end of the second speed reducer 52, and the output end of the second speed reducer 52 is connected to the movable roller shaft 31.
[0035] In the embodiment, as shown in the figure, the first motor 41 is started, the first motor 41 drives the fixed roller shaft 21 to rotate, and the first speed reducer 42 is arranged to reduce the output speed of the first motor 41, provide appropriate speed for the rotation of the fixed roller shaft 21, so that the fixed roller shaft 21 can operate normally. The second motor 51 is started, the second motor 51 drives the movable roller shaft 31 to rotate, and the second speed reducer 52 is arranged to reduce the output speed of the second motor 51, provide appropriate speed for the rotation of the movable roller shaft 31, so that the movable roller shaft 31 can operate normally. Figure 1
[0036] Preferably, a plurality of door plates 12 and a plurality of door handles 13 are further included, the plurality of door plates 12 are arranged on the top of the rack 1 in a flip manner, and the plurality of door handles 13 are installed on the respective door plates 12. Figure 1 In the embodiment, as shown in the figure, since the plurality of door plates 12 are arranged on the top of the rack 1 in a flip manner, when the staff needs to check the working condition of the fixed roller body 2 and the movable roller body 3 inside the rack 1, the door plate 12 can be opened for checking. The door handle 13 is arranged to facilitate the hand to open the door plate 12.
[0037] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application, and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanations here, those skilled in the art can think of other specific embodiments of the present application without creative labor, and these embodiments will fall within the scope of protection of the present application.
Claims
1. A twin roll pulp roll press characterized by: The rack, the fixed roller body, the movable roller body, the fixed roller driving assembly, the movable roller driving assembly, the plurality of wear-resistant plates, the swing arm and the at least two hydraulic cylinders are arranged on the rack. The top and the bottom of the rack are respectively provided with an inlet and an outlet. The fixed roller driving assembly, the movable roller driving assembly and the two hydraulic cylinders are arranged outside the rack, the fixed roller body and the movable roller body are arranged inside the rack, the two ends of the fixed roller body are rotatably mounted on the left and right sides of the rack, the two ends of the swing arm are pivotably mounted on the left and right sides of the rack, the movable roller body is mounted on the swing arm, and the driving ends of the two hydraulic cylinders are connected to the two ends of the swing arm. The fixed roller driving assembly is connected with the fixed roller body, the movable roller driving assembly is connected with the movable roller body, the fixed roller driving assembly is used for driving the fixed roller body to rotate, and the movable roller driving assembly is used for driving the movable roller body to rotate.
2. A twin roll pulper according to claim 1, characterized in that: The two scraper frames are mounted on the bottom of the rack, and the two scraper frames are located below the fixed roller body and the movable roller body.
3. A twin roll pulper according to claim 1, wherein: The two speed sensors are arranged inside the rack, one of the speed sensors is used for detecting the rotating speed of the fixed roller body, and the other speed sensor is used for detecting the rotating speed of the movable roller body.
4. A twin roll pulper according to claim 1, wherein: The fixed roller body comprises a fixed roller shaft and a fixed roller cylinder, and the movable roller body comprises a movable roller shaft and a movable roller cylinder. The fixed roller cylinder is sleeved on the fixed roller shaft, and the movable roller cylinder is sleeved on the movable roller shaft.
5. A twin roll pulper according to claim 4, wherein: The fixed roller driving assembly comprises a first motor and a first speed reducer, and the movable roller driving assembly comprises a second motor and a second speed reducer. The driving end of the first motor is connected to the input end of the first speed reducer, the output end of the first speed reducer is connected to the fixed roller shaft, the driving end of the second motor is connected to the input end of the second speed reducer, and the output end of the second speed reducer is connected to the movable roller shaft.
6. A twin roll pulper according to claim 1, wherein: The plurality of door plates are pivotally arranged on the top of the rack, and the plurality of door handles are mounted on the door plates.