Paper pulp hanging beam structure capable of adjusting hanging points

Abstract

The invention relates to the technical field of lifting beams, in particular to a paper pulp lifting beam structure capable of adjusting lifting points, which comprises a lifting beam body, lifting beam sliding rails are symmetrically arranged on the left side and the right side of the bottom of the lifting beam body, and a plurality of lifting point sliding blocks are movably arranged on the lifting beam sliding rails; the lifting point sliding block comprises a main sliding block and two auxiliary sliding blocks located on the front side and the rear side of the main sliding block, the main sliding block and the auxiliary sliding blocks are in sliding fit with the lifting beam sliding rail, the two auxiliary sliding blocks and the main sliding block are in sliding connection, the two auxiliary sliding blocks can be unfolded or folded towards the two sides of the main sliding block respectively, and a lifting lug is arranged at the bottom end of the main sliding block. The multiple lifting point sliding blocks are arranged at the bottom of the lifting beam in a sliding mode, so that multi-point lifting can be achieved, and the situation that the strength of a steel structure of the lifting beam is reduced due to too many grooves can be avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hanging beam, in particular to a paper pulp hanging beam structure with adjustable hanging points. BACKGROUND

[0002] Hanging beam is a commonly used load-bearing component in industrial hoisting operations, mainly serving to connect hoisting equipment and hoisted objects, and to achieve stable hoisting of various heavy objects by distributing load and balancing stress. It is widely used in shipbuilding, chemical industry, logistics and other fields, and can effectively avoid damage caused by direct contact between hoisting rigging and heavy objects, while improving the safety and efficiency of hoisting operations.

[0003] In paper pulp ship construction and paper pulp loading and unloading operations, due to the special space structure of the paper pulp ship cabin, and the paper pulp is usually stored in bundles or boxes, it is necessary to accurately hoist the paper pulp or related loading and unloading equipment to the designated position on the ship through the hanging beam. The bottom of such a special hanging beam is usually pre-provided with a plurality of lifting holes. In actual operation, the operator will pass one end of the iron cable through the lifting hole and fix it, and the other end will be tightly connected with the hoisted paper pulp bundle or equipment. Then, the hoisting is completed by the traction force of the crane. In this process, the position and number of lifting holes directly determine the connection mode of the iron cable, which in turn affects the distribution of the hoisting point and the operation adaptability.

[0004] However, the design of the lifting holes of the existing paper pulp hanging beam has obvious limitations. Specifically, when the number of lifting holes is small, the available positions of the hoisting points are limited. If the size difference of the paper pulp bundles or the center of gravity of the equipment is large, it is difficult to find an adaptive hoisting point, which may cause the hoisted object to tilt and increase the safety hazard. When the number of lifting holes is too large, it will greatly weaken the structural integrity of the bottom of the hanging beam, reduce its load and tensile resistance, and easily cause problems such as cracking of the edge of the lifting hole and deformation of the beam body during long-term use, which not only shortens the service life of the hanging beam, but also may cause hoisting accidents. Therefore, we propose a paper pulp hanging beam structure with adjustable hoisting points to solve the above problems. SUMMARY

[0005] The present application aims to provide a paper pulp hanging beam structure with adjustable hoisting points to solve the problems raised in the background.

[0006] The present application is achieved by the following technical solution: a paper pulp hanging beam structure with adjustable hoisting points, comprising a hanging beam body, the bottom of the hanging beam body is symmetrically provided with a hanging beam slide rail on the left and right sides, a plurality of hoisting point sliding blocks are movably arranged on the hanging beam slide rail;

[0007] The hoisting point sliding block comprises a main sliding block and two auxiliary sliding blocks located on the front and rear sides of the main sliding block, the main sliding block and the auxiliary sliding blocks are in sliding cooperation with the hanging beam slide rail, and the two auxiliary sliding blocks and the main sliding block are also in sliding connection, the two auxiliary sliding blocks can be respectively expanded or contracted to the two sides of the main sliding block, and the bottom end of the main sliding block is provided with an eye.

[0008] When the several lifting point sliders are respectively located on the front and back sides of the lifting beam body, the two auxiliary sliders are close to the main slider and in a folded state;

[0009] When the lifting point slider is located near the middle position of the lifting beam body, the corresponding two auxiliary sliders are in an unfolded state.

[0010] Optionally, the front and back ends of the lifting beam body are provided with telescopic cavities, and telescopic beams are movably inserted into the telescopic cavities, and the bottom surface of the end of the telescopic beam extending outside the telescopic cavity is provided with a movable lifting block.

[0011] Optionally, the top surface of the telescopic beam is uniformly and interval provided with several positioning holes, and the top positions of the front and back ends of the lifting beam body are provided with a positioning pin penetrating through, and the bottom end of the positioning pin is used for embedding into the positioning hole to fix the position of the telescopic beam.

[0012] Optionally, the left and right sides of the lifting beam sliding rail are provided with sliding grooves distributed along the length direction of the sliding rail, the main slider and the auxiliary slider are both in the shape of a V, the inside two side walls of the main slider are protruded to form main bearing blocks, the inside two side walls of the auxiliary slider are protruded to form auxiliary bearing blocks, and the main bearing blocks and the auxiliary bearing blocks are embedded into the sliding grooves.

[0013] Optionally, the left and right side walls of the main slider are provided with two sliding openings penetrating through, and the side close to the main slider of the auxiliary slider is provided with two sliding parts, the two sliding parts on the same auxiliary slider are embedded into the sliding openings on the two sides of the main slider, and the sliding parts on the two auxiliary sliders are interval and staggered distributed.

[0014] Optionally, the inside bottom surface of the main slider is provided with a hidden groove, a driving gear is rotatably arranged in the hidden groove, and two driven gears are rotatably arranged in the hidden groove and located on the two sides of the driving gear, and the driving gear and the driven gears are engaged;

[0015] The hidden groove is communicated with the two sliding openings close to the inside, and the surfaces of the two sliding parts in the two sliding openings close to the inside are provided with driven racks distributed along the length direction of the sliding parts, and the two driven gears are engaged with the two driven racks, respectively.

[0016] The bottom surface of the lifting beam sliding rail is provided with a driving groove distributed along the length direction of the sliding rail, the inner surface of the driving groove and located on the two sides close to the middle position of the lifting beam body are symmetrically provided with driving racks, the top of the driving gear extends into the driving groove, when the lifting point slider approaches the middle position from the two sides of the lifting beam body and passes through the driving rack, the driving gear can be rollingly engaged with the driving rack and drive the two auxiliary sliders to move away from each other.

[0017] Optionally, the length direction of the sliding part and the length direction of the main sliding block have an included angle, when the two pairs of sliding blocks are in an unfolded state, the bottom surface of the auxiliary load-bearing block is lower than the bottom surface of the main load-bearing block; when the two pairs of sliding blocks are in a closed state, the bottom surface of the auxiliary load-bearing block is higher than the bottom surface of the main load-bearing block.

[0018] Optionally, the top side of the main sliding block is provided with a spring latch, and the hanging beam sliding rail is provided with a plurality of latch holes matched with the spring latches.

[0019] Optionally, the main driving gear is rotatably connected to the inner bottom surface of the hidden groove through a damping bearing.

[0020] Optionally, the included angle between the length direction of the sliding part and the length direction of the main sliding block is not more than 1°, and when the two pairs of sliding blocks are in an unfolded state, the height difference between the bottom surface of the auxiliary load-bearing block and the bottom surface of the main load-bearing block is not more than 2mm.

[0021] Compared with the prior art, the paper pulp hanging beam structure with adjustable hanging points has the following beneficial effects:

[0022] 1. The present application sets a plurality of hanging point sliding blocks at the bottom of the hanging beam, so that not only can multiple-point hoisting be realized, but also the steel structure strength of the hanging beam can be prevented from being reduced due to too many slots.

[0023] 2. The present application sets telescopic beams at both ends of the hanging beam body in a telescopic manner, and the overall length of the hanging beam can be adaptively adjusted through the extension and contraction of the telescopic beams, so as to adapt to various hoisting requirements.

[0024] 3. The hanging point sliding block in the present application includes a main sliding block and auxiliary sliding blocks located on both sides of the main sliding block, when a large amount of heavy objects need to be hoisted at one time, the hanging point sliding block can be in a closed state, and when heavy goods need to be hoisted, the hanging point sliding block can be in an unfolded state, so as to expand the stress range and prevent the hanging beam sliding rail from being bent and deformed due to stress concentration. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present application;

[0026] Figure 2 It is a first state structure front view of the present application;

[0027] Figure 3 It is a second state structure front view of the present application;

[0028] Figure 4 It is a hanging point sliding block structure schematic diagram of the present application;

[0029] Figure 5 It is a hanging point sliding block cross-sectional schematic diagram of the present application;

[0030] Figure 6 Figure is a partial view of the beam sliding rail structure of the present application;

[0031] Figure 7 Figure is Figure 6 Figure is an enlarged view of A in Figure

[0032] Figure 8 Figure is a sectional view of the lifting point sliding block structure of the present application.

[0033] In the figure: 100, beam body; 101, beam sliding rail; 102, positioning bolt; 103, sliding groove; 104, driving groove; 105, driving rack; 106, bolt hole; 200, telescopic beam; 201, lifting block; 202, positioning hole; 300, lifting point sliding block; 301, main sliding block; 302, auxiliary sliding block; 303, main bearing block; 304, auxiliary bearing block; 305, sliding port; 306, sliding part; 307, hidden groove; 308, driving gear; 309, driven gear; 310, driven rack; 311, spring bolt; 312, lifting lug. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0035] Embodiment one: please refer to Figure 1 - Figure 7 A pulp beam structure with adjustable lifting points, comprising a beam body 100, the beam body 100 has left and right beam bodies symmetrically distributed on the left and right sides, and a cross beam between the left and right beam bodies as a connecting piece, the bottom of the beam body 100 is symmetrically provided with beam sliding rails 101 on the left and right sides, the beam sliding rails 101 are distributed along the length direction of the beam body 100, and the beam sliding rails 101 and the beam body 100 are integrally formed.

[0036] Further, the front and rear ends of the beam body 100 are provided with telescopic cavities, and telescopic beams 200 are movably inserted into the telescopic cavities. The bottom surface of the end of the telescopic beam 200 extending out of the telescopic cavity is provided with a movable hoisting block 201. The top surface of the telescopic beam 200 is uniformly and spacedly provided with a plurality of positioning holes 202, and the top positions of the front and rear ends of the beam body 100 are provided with positioning pins 102 penetrating through. The bottom end of the positioning pin 102 is used for embedding into the positioning hole 202 to fix the position of the telescopic beam 200. The telescopic beam 200 is used to expand the length of the beam and increase the lifting points. When a large volume of goods is hoisted by using the embodiment, or a large amount of goods needs to be hoisted, the telescopic beam 200 can be extended, and the iron cable can pass through the movable hoisting block 201. Therefore, the flexibility of hoisting large volume of goods can be improved by the telescopic beam 200, so that the embodiment can adapt to more hoisting scenes.

[0037] It is worth mentioning that the length of the beam body 100 in the embodiment is about 20 meters, and when the two telescopic beams 200 are unfolded outward, the overall length of the beam can reach 25 meters at most.

[0038] In the embodiment, a plurality of lifting point sliding blocks 300 are movably arranged on the beam sliding rail 101. Specifically, the lifting point sliding block 300 includes a main sliding block 301 and two auxiliary sliding blocks 302 located on the front and rear sides of the main sliding block 301. The main sliding block 301 and the auxiliary sliding block 302 are in sliding cooperation with the beam sliding rail 101, and the two auxiliary sliding blocks 302 are also in sliding connection with the main sliding block 301. The two auxiliary sliding blocks 302 can be unfolded or folded to the two sides of the main sliding block 301, respectively. The bottom end of the main sliding block 301 is provided with an eye 312. The eye 312 and the main sliding block 301 are an integral structure, and the main sliding block 301 and the auxiliary sliding block 302 are made of stainless steel, which has corrosion resistance and high strength characteristics.

[0039] When the plurality of lifting point sliding blocks 300 are located on the front and rear sides of the beam body 100, the two auxiliary sliding blocks 302 are tightly attached to the main sliding block 301 in the folded state. When the lifting point sliding block 300 is located near the middle position of the beam body 100, the two auxiliary sliding blocks 302 are in the unfolded state. Specifically, when a plurality of heavy objects are hoisted at one time by using the embodiment, the plurality of lifting point sliding blocks 300 need to be kept in the folded state. The reason is that the overall length of the lifting point sliding block 300 in the folded state is short, which is beneficial to accommodating more lifting point sliding blocks 300 in a short distance range. Conversely, when a heavy object is hoisted by using the embodiment, only a small number of objects can be hoisted at one time in order to avoid exceeding the bearing limit of the beam. At this time, part of the lifting point sliding blocks 300 can be in the unfolded state, so as to avoid the deformation of the beam sliding rail 101 due to excessive local stress.

[0040] The lifting point sliding block 300 and the beam sliding rail 101 will be described below:

[0041] The left and right sides of the lifting beam slide rail 101 are provided with grooves 103 distributed along its length. Both the main slide block 301 and the auxiliary slide block 302 are U-shaped. The main slide block 301 has main load-bearing blocks 303 protruding from its inner two side walls, and the auxiliary slide block 302 has auxiliary load-bearing blocks 304 protruding from its inner two side walls. Both the main load-bearing blocks 303 and auxiliary load-bearing blocks 304 are embedded in the grooves 103. To improve the wear resistance of the main load-bearing blocks 303 and auxiliary load-bearing blocks 304, in this embodiment, a wear-resistant coating, such as chromium oxide, can be plated onto the outer surfaces of the main load-bearing blocks 303 and auxiliary load-bearing blocks 304.

[0042] In addition, the left and right side walls of the main slider 301 are provided with two sliding openings 305, and the side of the secondary slider 302 near the main slider 301 is provided with two sliding parts 306. The two sliding parts 306 on the same secondary slider 302 are respectively embedded in the sliding openings 305 on both sides of the main slider 301, and the sliding parts 306 on the two secondary sliders 302 are distributed alternately. Figure 4 As shown, of the two sliding portions 306 on the same sub-slider 302, one sliding portion 306 is embedded in a sliding opening 305 near the inner side, and the other sliding portion 306 is embedded in a sliding opening 305 near the outer side. Furthermore, the sub-slider 302 and the sliding portions 306 are integrally formed structures.

[0043] like Figure 5 As shown, a hidden groove 307 is provided on the inner bottom surface of the main slider 301. A driving gear 308 is rotatably mounted in the hidden groove 307 via a damping bearing. Driven gears 309 are rotatably mounted on both sides of the driving gear 308 in the hidden groove 307, and the driving gear 308 and driven gears 309 mesh with each other. The top of the driving gear 308 is higher than the inner bottom surface of the main slider 301, while the driven gears 309 are located inside the hidden groove 307. The hidden groove 307 communicates with two sliding openings 305 near the inner side. The surfaces of the two sliding parts 306 in the two sliding openings 305 near the inner side are provided with driven racks 310 distributed along their own length direction. The two driven gears 309 mesh with the two driven racks 310 respectively. Therefore, when the driving gear 308 rotates, the two driven gears 309 rotate in the same direction, and the rotation of the driving gear 308 can drive the two sliders 302 to move closer or further apart.

[0044] Further, the bottom surface of the beam slide rail 101 is provided with a driving groove 104 distributed along the length direction of the beam slide rail 101. The inner surface of the driving groove 104 and the two sides near the middle position of the beam body 100 are symmetrically provided with driving racks 105. The top of the driving gear 308 extends into the driving groove 104. When the lifting point slider 300 moves from the two sides of the beam body 100 to the middle position and passes through the driving rack 105, the driving gear 308 can rollingly engage with the driving rack 105 to drive the two pairs of sliders 302 to move away from each other. In this embodiment, the middle point of the beam body 100 is point A. The two driving racks 105 are located on the symmetric two sides of point A. The distance between the driving rack 105 and point A is about 1 m. The two driving racks 105 are respectively located on the left and right sides of the driving groove 104.

[0045] In this embodiment, the top side of the main slider 301 is provided with a spring latch 311. The beam slide rail 101 is provided with a plurality of latch holes 106 matched with the spring latch 311. When the latch rod of the spring latch 311 is embedded in the latch hole 106, the position of the main slider 301 can be fixed.

[0046] In summary, in the specific application process of this embodiment, when a large number of articles need to be lifted at one time and the mass of each article is relatively small, a plurality of lifting point sliders 300 can be respectively arranged at the front and rear positions of the beam slide rail 101, and the lifting point sliders 300 are located on the outer sides of the two driving racks 105. Then the iron cable connected with the articles is hung on the lifting lug 312. The beam can be used to lift a large number of heavy objects at one time. However, it should be noted that the total mass of the large number of heavy objects should not exceed the upper limit of the load bearing capacity of the beam body 100. In this lifting mode, since all the lifting point sliders 300 participate in the lifting work, in order to save space, all the lifting point sliders 300 need to be kept in the folded state so as to accommodate more lifting point sliders 300 within a limited length range.

[0047] When the mass of each object to be lifted is large, in order to avoid exceeding the upper limit of the load bearing capacity of the beam, only a small number of objects can be lifted at one time. Taking the lifting of two heavy objects at one time as an example, the two lifting point sliders 300 near the two sides of the middle position are further moved to the middle position. When the lifting point slider 300 passes through the driving rack 105, the two pairs of sliders 302 located on the two sides automatically expand outward, which can expand the range of force and avoid the bending and deformation of the beam slide rail 101 due to stress concentration. In addition, when lifting heavy objects, the closer the lifting point is to the middle position of the beam, the stronger the load bearing capacity of the beam is, and the more conducive to the balance of the beam.

[0048] It is worth mentioning that in this embodiment, at most only four lifting point sliders 300 are allowed to move between the two driving racks 105, such as Figure 3The main function of the structure of the driving gear 308 and the driven gear 309 is to automatically extend or close the auxiliary sliding block 302, thereby improving the convenience of use.

[0049] Embodiment two: please refer to Figure 1 Figure 8 The pulp hanging beam structure of the embodiment can adjust the hanging point. The difference between the embodiment and embodiment one is that:

[0050] The length direction of the sliding part 306 and the length direction of the main sliding block 301 have an included angle. When the two auxiliary sliding blocks 302 are in an unfolded state, the bottom surface of the auxiliary load-bearing block 304 is lower than the bottom surface of the main load-bearing block 303. When the two auxiliary sliding blocks 302 are in a closed state, the bottom surface of the auxiliary load-bearing block 304 is higher than the bottom surface of the main load-bearing block 303. Specifically, the included angle between the length direction of the sliding part 306 and the length direction of the main sliding block 301 is not more than 1°. When the two auxiliary sliding blocks 302 are in an unfolded state, the height difference between the bottom surface of the auxiliary load-bearing block 304 and the bottom surface of the main load-bearing block 303 is not more than 2 mm.

[0051] It should be noted that although the sliding part 306 is inclined, the two driven gears 309 can still engage with the driven rack 310 due to the small inclination. In addition, the bottom surface of the auxiliary load-bearing block 304 is in a horizontal posture, thereby ensuring that the auxiliary load-bearing block 304 can stably fit the inner bottom surface of the sliding groove 103.

[0052] That is, when the two auxiliary sliding blocks 302 are in a closed state, the bottom surface of the auxiliary load-bearing block 304 does not fit the inner bottom surface of the sliding groove 103, and at this time, the weight of the hoisted object is concentrated on the main load-bearing block 303. When the two auxiliary sliding blocks 302 are in an unfolded state, in the state of not suspending a heavy object, the two auxiliary load-bearing blocks 304 fit the inner bottom surface of the sliding groove 103, and the main load-bearing block 303 is suspended. When a heavy object is suspended on the lifting lug 312, the sliding part 306 is deformed and bent due to the force, thereby causing the main load-bearing block 303 to move downward and fit the inner bottom surface of the sliding groove 103. At this time, the main load-bearing block 303 and the two auxiliary load-bearing blocks 304 act as load points, which can effectively avoid stress concentration and prevent the sliding rail 101 of the hanging beam from being bent and deformed due to excessive force.

[0053] ​Compared with the first embodiment, the embodiment can avoid the situation that most of the force is concentrated on the main sliding block 301 due to the movable arrangement of the sliding part 306. The embodiment can ensure that the two pairs of sliding blocks 302 always bear part of the force by the inclined design of the sliding part 306, and then the main sliding block 301 is in contact with the inner bottom surface of the sliding groove 103, so that the two pairs of sliding blocks 302 can always bear part of the force, which is beneficial to the uniform dispersion of the force. It is worth mentioning that the greater the inclination of the sliding part 306, the greater the force shared by the sliding blocks 302; on the contrary, the smaller the force shared by the sliding blocks 302. However, it should be noted that the angle between the sliding part 306 and the main sliding block 301 is always less than 1°.

[0054] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of

[0055] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pulp lifting beam structure with adjustable lifting points, comprising a lifting beam body, characterized in that: The bottom left and right sides of the lifting beam body are symmetrically provided with lifting beam slide rails, and several lifting point sliders are movably provided on the lifting beam slide rails; The lifting point slider includes a main slider and two auxiliary sliders located on the front and rear sides of the main slider. Both the main slider and the auxiliary sliders are slidably engaged with the lifting beam slide rail, and the two auxiliary sliders are also slidably connected to the main slider. The two auxiliary sliders can be extended or retracted to the sides of the main slider respectively. The bottom end of the main slider is provided with lifting lugs. When the aforementioned lifting point sliders are located on the front and rear sides of the lifting beam body respectively, both auxiliary sliders are in a retracted state, closely attached to the main slider. When the lifting point slider is located in the middle position near the main body of the lifting beam, the corresponding two auxiliary sliders are in an unfolded state.

2. The pulp lifting beam structure with adjustable lifting points according to claim 1, characterized in that: The front and rear ends of the lifting beam body are provided with telescopic cavities, and a telescopic beam is movably inserted into the telescopic cavity. A movable lifting block is provided on the bottom surface of the end of the telescopic beam that extends out of the telescopic cavity.

3. The pulp lifting beam structure with adjustable lifting points according to claim 2, characterized in that: The top surface of the telescopic beam is provided with several positioning holes evenly spaced apart. Positioning pins are provided through the top positions of the front and rear ends of the beam body. The bottom end of the positioning pin is used to be embedded in the positioning hole to fix the position of the telescopic beam.

4. A pulp lifting beam structure with adjustable lifting points according to any one of claims 1-3, characterized in that: The left and right sides of the lifting beam slide rail are provided with grooves distributed along its own length. The main slide block and the auxiliary slide block are both U-shaped. The main slide block has a main load-bearing block protruding from its inner two side walls, and the auxiliary slide block has an auxiliary load-bearing block protruding from its inner two side walls. The main load-bearing block and the auxiliary load-bearing block are both embedded in the grooves.

5. The pulp lifting beam structure with adjustable lifting points according to claim 4, characterized in that: The main slider has two sliding openings on both its left and right sidewalls. The secondary slider has two sliding parts on the side closest to the main slider. The two sliding parts on the same secondary slider are respectively embedded in the sliding openings on both sides of the main slider, and the sliding parts on the two secondary sliders are distributed alternately.

6. The pulp lifting beam structure with adjustable lifting points according to claim 5, characterized in that: The inner bottom surface of the main slider is provided with a hidden groove, a drive gear is rotatably provided in the hidden groove, and driven gears are rotatably provided in the hidden groove on both sides of the drive gear, and the drive gear and driven gear mesh with each other; The hidden groove communicates with two sliding openings near the inner side. The surfaces of the two sliding parts located in the two sliding openings near the inner side are provided with driven racks distributed along their own length direction. The two driven gears mesh with the two driven racks respectively. The bottom surface of the lifting beam slide rail is provided with drive grooves distributed along its own length. The inner surface of the drive grooves and the two sides located near the middle position of the lifting beam body are symmetrically provided with drive racks. The top of the drive gear extends into the drive groove. When the lifting point sliders move from the two sides of the lifting beam body towards the middle position and pass the drive racks, the drive gear can roll and mesh with the drive racks and drive the two sliders to move away from each other.

7. The pulp lifting beam structure with adjustable lifting points according to claim 6, characterized in that: The length direction of the sliding part and the length direction of the main slider form an angle. When the two sliders are in the unfolded state, the bottom surface of the secondary load-bearing block is lower than the bottom surface of the main load-bearing block; when the two sliders are in the closed state, the bottom surface of the secondary load-bearing block is higher than the bottom surface of the main load-bearing block.

8. A pulp lifting beam structure with adjustable lifting points according to any one of claims 5-7, characterized in that: The top side of the main slider is provided with a spring pin, and the lifting beam slide rail is provided with a number of pin holes that are adapted to the spring pin.

9. The pulp lifting beam structure with adjustable lifting points according to claim 6, characterized in that: The drive gear is rotatably connected to the inner bottom surface of the hidden groove via a damping bearing.

10. The pulp lifting beam structure with adjustable lifting points according to claim 7, characterized in that: The angle between the length direction of the sliding part and the length direction of the main slider does not exceed 1°. When the two auxiliary sliders are in the unfolded state, the height difference between the bottom surface of the auxiliary load-bearing block and the bottom surface of the main load-bearing block does not exceed 2 mm.

Images