A low-noise crushing device for laboratory use

Abstract

The present invention relates to the technical field of crushing equipment, and discloses a low-noise laboratory crushing device, including: an equipment housing, the inner wall of the equipment housing is provided with a crushing box, the inner wall of the crushing box is rotatably connected with two crushing shafts through bearings, one end of one of the crushing shafts is fixedly connected with a flexible connection belt, and the end of the flexible connection belt away from the crushing shaft is fixedly connected with a driving shaft. When the fixed sleeve and the guiding frame move relative to each other in the present invention, the eccentric tube will drive the sliding piece to rotate eccentrically on the inner wall of the fixed sleeve, so that the space between two adjacent sliding pieces will change, and the pressure oil is driven to penetrate through the first through hole. Since there is a certain resistance when the pressure oil penetrates through the first through hole, a damping effect is generated for the relative movement of the guiding frame and the fixed sleeve caused by the rotation of the eccentric tube, thereby slowing down the relative movement of the guiding frame and the fixed sleeve, reducing the transmission of vibration and reducing noise generation.

Description

Technical Field

[0001] The present invention relates to the technical field of crushing equipment, and particularly to a low-noise laboratory crushing device. Background Art

[0002] In medical research laboratories, scientists often need to crush hard tissues such as femoral heads. Through the crushing process, it is easier to extract biomolecules such as cells, proteins, and DNA in bone tissues for subsequent pathological, biomechanical, or cell culture experiments.

[0003] For example, a bone processing mechanism suitable for bone collagen extraction provided by the publication number CN112916171A, which relates to the technical field of bone collagen extraction, solves the problems that in the actual application process of the existing bone processing device, effective crushing operations cannot be carried out before extracting collagen from bones, so the extraction efficiency is low and the effect is poor. Moreover, effective wear treatment cannot be carried out on the bones after boiling, so garbage accumulation will cause subsequent environmental pollution. It includes a driving mechanism, and the driving mechanism is fixedly connected to the left end face position of the supporting mechanism. In the present invention, through the rotational connection of the rotating rod and the guiding rod, while driving the crushing cylinder to move up and down along the screw rod, the crushing cylinder and the sleeve perform reverse rotational operations. This design can use a variety of crushing methods to fully stir and grind the input bones, and use multiple crushing operations to crush the input bones to achieve the purpose of improving work efficiency.

[0004] However, when the above technology is actually used, the crushing teeth will generate relatively large noise during crushing, which will cause discomfort to the scientists in the laboratory after long-term use and cannot meet the requirements of laboratory use. Summary of the Invention

[0005] The purpose of the present invention is to provide a low-noise laboratory crushing device to solve the problem that the crushing teeth will generate relatively large noise during crushing and cannot meet the requirements of laboratory use.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: including:

[0007] An equipment housing, the inner wall of the equipment housing is provided with a crushing box, the inner wall of the crushing box is rotatably connected with two crushing shafts through bearings, one end of one of the crushing shafts is fixedly connected with a flexible connection belt, and the end of the flexible connection belt away from the crushing shaft is fixedly connected with a driving shaft, so as to reduce the vibration generated by the crushing shaft during operation and transmit it to the driving shaft through the flexible connection belt;

[0008] The gap between the equipment housing and the crushing box is filled with sound-absorbing cotton to prevent the noise generated by the crushing box during operation from spreading to the outside through the equipment housing;

[0009] A buffer assembly disposed between the crushing box and the equipment housing, and the buffer assembly is used to weaken the transmission of vibrations generated by the operation of the crushing box to the equipment housing. The buffer assembly includes a radial buffer assembly and an axial buffer assembly;

[0010] The radial buffer assembly includes two connecting frames fixedly connected to the top and bottom of the inner wall of the equipment housing. One end of the opposite surfaces of the two connecting frames is fixedly connected with a guiding frame. One end of the crushing box is fixedly connected with a fixed sleeve. An eccentric tube is eccentrically rotatably connected to the inner wall of the fixed sleeve. A plurality of sliding plates that move radially along the eccentric tube are movably arranged on the surface of the eccentric tube. A plurality of first through holes are opened at one end of the sliding plate away from the eccentric tube. Pressure oil is filled between the eccentric tube and the fixed sleeve. The guiding frame is eccentrically rotatably connected to the middle of the fixed sleeve;

[0011] The axial buffer assembly includes a connecting plate fixedly connected to one end of the crushing box and a fixed frame fixedly connected to the inner wall of the equipment housing. A liquid storage cavity is fixedly connected to the inner wall of the fixed frame. The fixed frame and the liquid storage cavity are both C-shaped structures. A liquid bag communicated with the inner wall of the liquid storage cavity is fixedly connected to the inner wall of the liquid storage cavity. And the connecting plate is located between the top liquid bag and the bottom liquid bag. A blocking block is fixedly connected to the middle position between the fixed frame and the liquid storage cavity. A second through hole is opened in the middle of the blocking block. Pressure oil is arranged inside the liquid bag so that when the connecting plate presses the liquid bag, the pressure oil on the inner wall of the liquid bag is not easily penetrated through the second through hole.

[0012] Preferably, a feed hopper is fixedly connected to the top of the equipment housing, and a feed pipe is fixedly connected to the top of the feed hopper. The feed pipe is inclined, and the top of the feed pipe is an open structure. A top cover is hinged to the top of the feed pipe so as to seal the top of the feed pipe to prevent noise from spreading from the outlet of the feed pipe. A fixed support is fixedly connected to the bottom of the equipment housing.

[0013] Preferably, crushing teeth for crushing the femur are fixedly connected to the surface of the crushing shaft. One end of the two crushing shafts away from the soft connection belt is respectively fixedly connected with a gear, and the surfaces of the two gears are meshed with each other. A comb tooth plate is fixedly connected to the inner wall of the crushing box, and the comb tooth plate is arranged in a staggered manner with the crushing teeth. Rubber connection belts are fixedly connected to the top and bottom of the crushing box respectively, and the rubber connection belts are fixedly connected to the inner wall of the connecting frame.

[0014] Preferably, one end of the equipment housing corresponding to the gear position is fixedly embedded with a gear protective cover to protect the gear. One end of the equipment housing corresponding to the drive shaft position is fixedly connected with a drive mounting cover, and the drive shaft is rotatably connected to the middle of the drive mounting cover through a bearing to support the drive shaft and prevent vibration from being transmitted to the equipment housing through the drive mounting cover by a flexible connection belt.

[0015] Preferably, both the upper and lower ends of the eccentric tube are rotatably connected to the fixed sleeve through sealing rings, so as to form a dynamic seal between the middle of the surface of the eccentric tube and the fixed sleeve.

[0016] Preferably, an activity cavity is formed on the surface of the eccentric tube corresponding to the position of the sliding piece, and the sliding piece is movably connected to the inner walls of the fixed sleeve and the activity cavity. One end of the sliding piece corresponding to the eccentric tube is fixedly connected with a metal elastic piece, and the metal elastic piece is closely attached to the inner wall of the activity cavity.

[0017] Preferably, connection pieces are fixedly connected to both the top and bottom of the eccentric tube, and one end of each connection piece is fixedly connected with a first return spring. The two first return springs are fixedly connected to the top and bottom of the fixed sleeve.

[0018] Preferably, one end of the liquid sac far from the liquid storage cavity is fixedly connected with a contact plate, and the connecting plate is movably connected between the top contact plate and the bottom contact plate. One end of the opposite surfaces of the two contact plates is smoothly arranged to reduce the frictional resistance between the connecting plate and the contact plate.

[0019] Preferably, a plurality of partition plates are fixedly connected between the fixed frame and the liquid storage cavity to form a sealed space among the liquid sac, the partition plates, the liquid storage cavity and the fixed frame. A plurality of guide rods are fixedly connected to the opposite surfaces of the two contact plates far from the sealed space, and the guide rods movably penetrate through the liquid storage cavity and extend to the outside of the fixed frame. A second return spring is fixedly connected to the surface of the guide rod, and the second return spring is fixedly connected to the inner wall of the fixed frame.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When the fixed sleeve and the guide frame move relative to each other in the present invention, the eccentric tube will drive the sliding vane to rotate eccentrically on the inner wall of the fixed sleeve, causing the space between two adjacent sliding vanes to change, and driving the pressure oil to penetrate through the first through hole. Since there is a certain resistance when the pressure oil penetrates through the first through hole, it creates a damping effect for the relative movement of the guide frame and the fixed sleeve due to the rotation of the eccentric tube, thereby slowing down the relative movement of the guide frame and the fixed sleeve and reducing the transmission of vibration and noise generation; 2. When the connecting plate generates axial vibration in the present invention, the connecting plate will drive the contact plates at the top and bottom to squeeze the liquid sac at this time, and the pressure oil inside the liquid sac will penetrate through the plug block through the second through hole in the liquid storage cavity. At this time, the second through hole will impede the penetrated pressure oil, and thus play a damping effect on the extrusion of the liquid sac, thereby buffering the axial vibration of the connecting plate through the contact plates. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of a low-noise type laboratory crushing device of the present invention;

[0022] Figure 2 It is a partial cross-section of the overall structure of a low-noise type laboratory crushing device of the present invention Figure 1 ;

[0023] Figure 3 It is a partial cross-section of the overall structure of a low-noise type laboratory crushing device of the present invention Figure 2 ;

[0024] Figure 4 It is a schematic diagram of the structure of the crushing chamber of a low-noise type laboratory crushing device of the present invention;

[0025] Figure 5 It is a cross-sectional view of the structure of the crushing chamber of a low-noise type laboratory crushing device of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the buffer assembly of a low-noise type laboratory crushing device of the present invention;

[0027] Figure 7 It is a cross-section of the structure of the fixed sleeve of a low-noise type laboratory crushing device of the present invention Figure 1 ;

[0028] Figure 8 It is a cross-section of the structure of the fixed sleeve of a low-noise type laboratory crushing device of the present invention Figure 2 ;

[0029] Figure 9 It is a partial exploded view of the structure of the buffer assembly of a low-noise type laboratory crushing device of the present invention;

[0030] Figure 10Cross-section of the fixing frame structure of a low-noise laboratory crushing device according to the present invention Figure 1 ;

[0031] Figure 11 Cross-section of the fixing frame structure of a low-noise laboratory crushing device according to the present invention Figure 2 。

[0032] In the figure: 1, equipment housing; 2, feed hopper; 3, feed pipe; 4, top cover; 5, crushing box; 6, crushing shaft; 7, crushing teeth;

[0033] 801, connecting frame; 802, guiding frame; 803, fixed sleeve; 804, eccentric pipe; 805, movable cavity; 806, metal elastic sheet; 807, sliding piece; 808, first through hole; 809, connecting piece; 810, first return spring; 811, connecting plate; 812, fixing frame; 813, liquid storage cavity; 814, liquid sac; 815, contact plate; 816, block; 817, second through hole; 818, partition; 819, guiding rod; 820, second return spring;

[0034] 9, gear; 10, comb tooth plate; 11, rubber connecting belt; 12, gear protective cover; 13, drive mounting cover; 14, drive shaft; 15, flexible connecting belt. Specific embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] Please refer to Figure 1-11 , the present invention provides a technical solution: including:

[0037] Equipment housing 1, a feed hopper 2 is fixedly installed at the top of the equipment housing 1, and a feed pipe 3 is fixedly installed at the top of the feed hopper 2. The feed pipe 3 is inclined, and the top of the feed pipe 3 is an open structure. A top cover 4 is hinged to the top of the feed pipe 3 to seal the top of the feed pipe 3 to prevent noise from spreading out of the outlet of the feed pipe 3. A fixed bracket is fixedly installed at the bottom of the equipment housing 1. A crushing box 5 is provided on the inner wall of the equipment housing 1. Two crushing shafts 6 are rotatably connected to the inner wall of the crushing box 5 through bearings. Crushing teeth 7 for crushing the femur are fixedly installed on the surface of the crushing shafts 6. Gears 9 are fixedly installed at one ends of the two crushing shafts 6 away from the soft connection belt 15, and the surfaces of the two gears 9 are meshed with each other. A comb tooth plate 10 is fixedly installed on the inner wall of the crushing box 5, and the comb tooth plate 10 is arranged in a staggered manner with the crushing teeth 7. A soft connection belt 15 is fixedly installed at one end of one of the crushing shafts 6. One end of the soft connection belt 15 away from the crushing shaft 6 is fixedly installed with a drive shaft 14, so as to reduce the vibration generated by the crushing shaft 6 during operation and transmit it to the drive shaft 14 through the soft connection belt 15. A gear protection cover 12 is fixedly embedded at one end of the equipment housing 1 corresponding to the gear 9, so that the gear protection cover 12 protects the gear 9. A drive installation cover 13 is fixedly installed at one end of the equipment housing 1 corresponding to the drive shaft 14, and the drive shaft 14 is rotatably connected to the middle of the drive installation cover 13 through a bearing, so as to support the drive shaft 14 and prevent vibration from being transmitted to the equipment housing 1 through the drive installation cover 13 through the soft connection belt 15;

[0038] During use, by opening the top cover 4 and putting the femur into the interior of the feed hopper 2 from the feed pipe 3, and guiding it into the interior of the crushing box 5 through the feed hopper 2. By setting the rubber connection belt 11, the connection between the crushing box 5 and the connecting frame 801 is a soft connection, which realizes material guiding and avoids the vibration generated by the operation of the crushing box 5 from being transmitted to the equipment housing 1. By setting the gear protection cover 12 to protect the protruding gear 9, and by setting the drive installation cover 13 to provide an installation space for the soft connection belt 15, and through the soft connection belt 15, the vibration generated by the operation of the crushing shaft 6 is prevented from being transmitted to the position of the drive shaft 14. The drive shaft 14 is driven to rotate by a drive motor, and the drive shaft 14 drives one of the crushing shafts 6 to rotate through the soft connection belt 15. Through the two meshing gears 9, the crushing teeth 7 on the two crushing shafts 6 rotate relatively, and cooperate with the comb tooth plate 10 to crush the femur;

[0039] The gap between the equipment housing 1 and the crushing box 5 is filled with sound-absorbing cotton to prevent the noise generated by the operation of the crushing box 5 from being transmitted to the outside through the equipment housing 1. When the crushing box 5 is working, vibration will be generated due to crushing the femur, causing resonance of other structures, especially causing resonance of the equipment housing 1, resulting in noise generated by the equipment housing 1 being transmitted to the outside. By filling the gap between the equipment housing 1 and the crushing box 5 with sound-absorbing cotton, it can assist the noise generated by the crushing box 5 to spread outwards;

[0040] A buffer assembly disposed between the crushing box 5 and the equipment housing 1, and the buffer assembly is used to weaken the transmission of the vibration generated by the operation of the crushing box 5 to the equipment housing 1. The buffer assembly includes a radial buffer assembly and an axial buffer assembly;

[0041] The radial buffer assembly includes two connecting frames 801 fixedly installed at the top and bottom of the inner wall of the equipment housing 1. Rubber connecting bands 11 are fixedly installed at the top and bottom of the crushing box 5 respectively, and the rubber connecting bands 11 are fixedly installed on the inner wall of the connecting frames 801. One end of the opposite surfaces of the two connecting frames 801 is fixedly installed with a guiding frame 802. One end of the crushing box 5 is fixedly installed with a fixed sleeve 803. An eccentric tube 804 is eccentrically rotatably connected to the inner wall of the fixed sleeve 803. The upper and lower ends of the eccentric tube 804 are respectively rotatably connected to the fixed sleeve 803 through sealing rings, so as to form a dynamic seal between the middle of the surface of the eccentric tube 804 and the fixed sleeve 803. A plurality of sliding pieces 807 that move radially along the eccentric tube 804 are movably arranged on the surface of the eccentric tube 804. A plurality of first through holes 808 are opened at one end of the sliding piece 807 away from the eccentric tube 804. Pressure oil is filled between the eccentric tube 804 and the fixed sleeve 803. The guiding frame 802 is eccentrically rotatably connected to the middle of the fixed sleeve 803. An activity cavity 805 is opened on the surface of the eccentric tube 804 corresponding to the position of the sliding piece 807, and the sliding piece 807 is movably connected to the inner walls of the fixed sleeve 803 and the activity cavity 805. A metal elastic sheet 806 is fixedly installed at one end of the sliding piece 807 corresponding to the eccentric tube 804, and the metal elastic sheet 806 is closely attached to the inner wall of the activity cavity 805. Connecting pieces 809 are fixedly installed at the top and bottom of the eccentric tube 804 respectively, and a first return spring 810 is fixedly installed at one end of the connecting piece 809. The two first return springs 810 are fixedly installed at the top and bottom of the fixed sleeve 803;

[0042] When the above structure is in use, when the fixed sleeve 803 generates radial vibration, it will cause relative movement between the fixed sleeve 803 and the guide frame 802 in the horizontal direction, causing the guide frame 802 to squeeze the eccentric tube 804 and prompting the eccentric tube 804 to rotate on the inner wall of the fixed sleeve 803, and causing the eccentric tube 804 to drive the sliding vane 807 to rotate. As a result, the space between two adjacent sliding vanes 807 will change. When the space between two adjacent sliding vanes 807 increases, pressure oil will pass through the first through hole 808 and be injected into it. And when the space between two adjacent sliding vanes 807 decreases, the pressure oil will pass through the first through hole 808 and be extruded. Since there is a certain resistance when the pressure oil passes through the first through hole 808, it creates a damping effect for the relative movement between the guide frame 802 and the fixed sleeve 803, causing the eccentric tube 804 to rotate, thereby slowing down the relative movement between the guide frame 802 and the fixed sleeve 803. At the same time, by setting the first return spring 810 and the connecting piece 809, the eccentric tube 804 has the ability to return to its initial state.

[0043] The axial buffer assembly includes a connecting plate 811 fixedly installed at one end of the crushing box 5 and a fixed frame 812 fixedly installed on the inner wall of the equipment housing 1. A liquid storage cavity 813 is fixedly installed on the inner wall of the fixed frame 812. Both the fixed frame 812 and the liquid storage cavity 813 are respectively C-shaped structures. A liquid bag 814 communicating with the inner wall of the liquid storage cavity 813 is fixedly installed on the inner wall of the liquid storage cavity 813. And the connecting plate 811 is located between the top liquid bag 814 and the bottom liquid bag 814. Blocking blocks 816 are fixedly installed in the middle positions between the fixed frame 812 and the liquid storage cavity 813. A second through hole 817 is opened in the middle of the blocking block 816. Pressure oil is provided inside the liquid bag 814 so that when the connecting plate 811 squeezes the liquid bag 814, the pressure oil on the inner wall of the liquid bag 814 is not easily penetrated through the second through hole 817. One end of the liquid bag 814 away from the liquid storage cavity 813 is fixedly installed with a contact plate 815. And the connecting plate 811 is movably connected between the top contact plate 815 and the bottom contact plate 815. One end of the opposite surfaces of the two contact plates 815 is smooth to reduce the frictional resistance between the connecting plate 811 and the contact plate 815. A plurality of partition plates 818 are respectively fixedly installed at the positions between the fixed frame 812 and the liquid storage cavity 813 to form a sealed space between the liquid bag 814, the partition plates 818, the liquid storage cavity 813 and the fixed frame 812. A plurality of guide rods 819 are respectively fixedly installed on the opposite surfaces of the two contact plates 815 away from the sealed space. And the guide rods 819 movably penetrate through the liquid storage cavity 813 and extend to the outside of the fixed frame 812. A second return spring 820 is fixedly installed on the surface of the guide rod 819, and the second return spring 820 is fixedly installed on the inner wall of the fixed frame 812;

[0044] When the above structure is in use, when the connecting plate 811 generates axial vibration, the connecting plate 811 will drive the contact plates 815 at the top and bottom to squeeze the liquid sac 814, and the pressure oil inside the liquid sac 814 will pass through the second through hole 817 in the liquid storage cavity 813 through the plug 816. At this time, the second through hole 817 will hinder the passing pressure oil, thereby damping the squeezing of the liquid sac 814, and thus buffering the axial vibration of the connecting plate 811 through the contact plate 815. By setting the guide rod 819, the movement of the liquid storage cavity 813 can be guided, and at the same time, by setting the second return spring 820, the contact plate 815 can be restored to its original state.

[0045] Working principle: When in use, the present invention opens the top cover 4 and puts the femur into the inside of the feed hopper 2 from the feed pipe 3, and enters the inside of the crushing box 5 through the guidance of the feed hopper 2. By setting the rubber connecting belt 11, the connection between the crushing box 5 and the connecting frame 801 is a soft connection, which realizes material guiding while avoiding the vibration generated by the operation of the crushing box 5 from being transmitted to the equipment housing 1. By setting the gear protection cover 12, the protruding gear 9 is protected, and by setting the driving installation cover 13, an installation space is provided for the soft connection belt 15, and the soft connection belt 15 is used to prevent the vibration generated by the operation of the crushing shaft 6 from being transmitted to the position of the driving shaft 14.

[0046] During operation, the driving motor drives the driving shaft 14 to rotate, and the driving shaft 14 drives one of the crushing shafts 6 to rotate through the soft connection belt 15. Through two meshing gears 9, the crushing teeth 7 on the two crushing shafts 6 rotate relatively, and cooperate with the comb tooth plate 10 to crush the femur.

[0047] And when the crushing box 5 is working, the vibration generated by crushing the femur will cause resonance of other structures, especially the resonance of the equipment housing 1, resulting in the noise generated by the equipment housing 1 being transmitted to the outside. Sound-absorbing cotton is filled in the gap between the equipment housing 1 and the crushing box 5, which can assist the noise generated by the crushing box 5 to spread outward. And when the crushing box 5 vibrates, it will drive the fixed sleeve 803 and the connecting plate 811 to vibrate respectively.

[0048] When buffering radial vibration, when the fixed sleeve 803 generates radial vibration, it will cause relative movement between the fixed sleeve 803 and the guide frame 802 in the horizontal direction. Since the guide frame 802 rotates eccentrically on the inner wall of the eccentric tube 804, when relative movement occurs between the fixed sleeve 803 and the guide frame 802, the guide frame 802 will squeeze the eccentric tube 804 and cause the eccentric tube 804 to rotate on the inner wall of the fixed sleeve 803. When the eccentric tube 804 rotates on the inner wall of the fixed sleeve 803, it will cause the eccentric tube 804 to drive the sliding piece 807 to rotate. Since the eccentric tube 804 is eccentrically arranged on the inner wall of the fixed sleeve 803, that is, when the sliding piece 807 is driven to rotate by the eccentric tube 804, in cooperation with the metal elastic piece 806, multiple sliding pieces 807 move on the inner wall of the movable cavity 805. This causes the space between two adjacent sliding pieces 807 to change. When the space between two adjacent sliding pieces 807 increases, pressure oil passes through the first through hole 808 and is injected into it. And when the space between two adjacent sliding pieces 807 decreases, the pressure oil will be extruded through the first through hole 808. Since there is a certain resistance when the pressure oil passes through the first through hole 808, it creates a damping effect for the relative movement between the guide frame 802 and the fixed sleeve 803, causing the eccentric tube 804 to rotate, thereby slowing down the relative movement between the guide frame 802 and the fixed sleeve 803. At the same time, by setting the first return spring 810 in cooperation with the connecting piece 809, the eccentric tube 804 has the ability to return to its initial state;

[0049] When buffering axial vibration, when the connecting plate 811 generates axial vibration, at this time the connecting plate 811 will drive the contact plates 815 at the top and bottom to squeeze the liquid sac 814, and cause the pressure oil inside the liquid sac 814 to pass through the second through hole 817 in the liquid storage cavity 813 and penetrate the plug 816. At this time, the second through hole 817 will play a role in hindering the passing pressure oil, and thus play a damping effect on the extrusion of the liquid sac 814, thereby buffering the axial vibration of the connecting plate 811 through the contact plate 815. By setting the guide rod 819, it can guide the movement of the liquid storage cavity 813. At the same time, by setting the second return spring 820, the contact plate 815 can be restored to its original state.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-noise laboratory pulverizing device, characterized in that: include: A device housing (1), wherein a crushing box (5) is provided on the inner wall of the device housing (1), and the inner wall of the crushing box (5) is rotatably connected to two crushing shafts (6) via a bearing, wherein one end of one of the crushing shafts (6) is fixedly connected to a flexible connection belt (15), and the end of the flexible connection belt (15) away from the crushing shaft (6) is fixedly connected to a drive shaft (14), so that the vibration generated by the crushing shaft (6) during operation is reduced by the flexible connection belt (15) and transmitted to the drive shaft (14); The gap between the device housing (1) and the crushing box (5) is filled with sound-absorbing cotton to prevent the noise generated by the crushing box (5) from being transmitted to the outside through the device housing (1); A buffer component is arranged between the crushing box (5) and the equipment housing (1), and the buffer component is used to weaken the transmission of vibration generated by the crushing box (5) during operation to the equipment housing (1), and the buffer component comprises a radial buffer component and an axial buffer component; The radial buffer assembly comprises two connecting frames (801) fixedly connected to the top and bottom of the inner wall of the equipment housing (1); one end of the two connecting frames (801) facing each other is fixedly connected to a guide frame (802); one end of the crushing box (5) is fixedly connected to a fixed sleeve (803); the inner wall of the fixed sleeve (803) is eccentrically rotatably connected to an eccentric tube (804); a surface of the eccentric tube (804) is provided with a plurality of sliding vanes (807) that move radially along the eccentric tube (804); a plurality of first through holes (808) are formed at one end of the sliding vane (807) away from the eccentric tube (804); pressure oil is filled between the eccentric tube (804) and the fixed sleeve (803); and the guide frame (802) is eccentrically rotatably connected to the middle of the fixed sleeve (803); The axial buffer assembly comprises a connecting plate (811) fixedly connected to one end of the crushing box (5) and a fixing frame (812) fixedly connected to the inner wall of the device housing (1); the inner wall of the fixing frame (812) is fixedly connected to a liquid storage cavity (813); the fixing frame (812) and the liquid storage cavity (813) are both C-shaped structures; the inner wall of the liquid storage cavity (813) is fixedly connected to a liquid capsule (814) that is in communication with the inner wall of the liquid storage cavity (813); and the connecting plate (811) is fixedly connected to the inner wall of the crushing box (5). 811) is located between the top liquid capsule (814) and the bottom liquid capsule (814), a blocking block (816) is fixedly connected in the middle of the position between the fixing frame (812) and the liquid storage chamber (813), a second through hole (817) is opened in the middle of the blocking block (816), and pressure oil is provided inside the liquid capsule (814), so that when the connecting plate (811) squeezes the liquid capsule (814), the pressure oil on the inner wall of the liquid capsule (814) is not easy to penetrate the second through hole (817).

2. A low-noise laboratory pulverizing device according to claim 1, characterized in that: A feed hopper (2) is fixedly connected to the top of the device housing (1), and a feed pipe (3) is fixedly connected to the top of the feed hopper (2); the feed pipe (3) is arranged obliquely, and the top of the feed pipe (3) is an open structure; a top cover (4) is hingedly connected to the top of the feed pipe (3) so as to seal the top of the feed pipe (3) to prevent noise from propagating from the outlet of the feed pipe (3); and a fixed bracket is fixedly connected to the bottom of the device housing (1).

3. A low-noise laboratory pulverizing device according to claim 2, characterized in that: The surface of the crushing shaft (6) is fixedly connected with crushing teeth (7) for crushing the femur, and the ends of the two crushing shafts (6) away from the soft connection belt (15) are respectively fixedly connected with gears (9), and the surfaces of the two gears (9) are meshed with each other. The inner wall of the crushing box (5) is fixedly connected with a comb plate (10), and the comb plate (10) and the crushing teeth (7) are arranged in an alternating manner. The top and bottom of the crushing box (5) are respectively fixedly connected with rubber connection belts (11), and the rubber connection belt (11) is fixedly connected to the inner wall of the connecting frame (801).

4. A low-noise laboratory pulverizing device according to claim 3, characterized in that: A gear protection cover (12) is fixedly embedded in one end of the device housing (1) corresponding to the position of the gear (9), so that the gear protection cover (12) protects the gear (9); a drive mounting cover (13) is fixedly connected to one end of the device housing (1) corresponding to the position of the drive shaft (14), and the drive shaft (14) is rotatably connected to the middle part of the drive mounting cover (13) through a bearing, so as to support the drive shaft (14), and a soft connection belt (15) is used to prevent vibration from being transmitted to the device housing (1) through the drive mounting cover (13).

5. A low-noise laboratory pulverizing device according to claim 4, characterized in that: The upper and lower ends of the eccentric tube (804) are rotatably connected to the fixed sleeve (803) via sealing rings, so that a dynamic seal is formed between the middle of the surface of the eccentric tube (804) and the fixed sleeve (803).

6. A low-noise laboratory pulverizing device according to claim 5, characterized in that: A movable cavity (805) is provided on the surface of the eccentric tube (804) corresponding to the position of the sliding plate (807), and the sliding plate (807) is movably connected to the fixed sleeve (803) and the inner wall of the movable cavity (805); a metal spring (806) is fixedly connected to one end of the sliding plate (807) corresponding to the position of the eccentric tube (804), and the metal spring (806) is tightly fitted to the inner wall of the movable cavity (805).

7. A low-noise laboratory pulverizing device according to claim 6, characterized in that: The top and bottom of the eccentric tube (804) are respectively fixedly connected with a connecting piece (809), and one end of the connecting piece (809) is fixedly connected with a first return spring (810), and the two first return springs (810) are fixedly connected to the top and bottom of the fixed sleeve (803).

8. A low-noise laboratory pulverizing device according to claim 7, characterized in that: One end of the liquid capsule (814) away from the liquid storage chamber (813) is fixedly connected to a contact plate (815), and the connecting plate (811) is movably connected between the top contact plate (815) and the bottom contact plate (815), and one end of the opposite surface of the two contact plates (815) is smoothly arranged to reduce the friction resistance between the connecting plate (811) and the contact plate (815).

9. A low-noise laboratory pulverizing device according to claim 8, characterized in that: A plurality of partitions (818) are fixedly connected at positions between the fixed frame (812) and the liquid storage chamber (813) to form a sealed space between the liquid capsule (814), the partition (818), the liquid storage chamber (813) and the fixed frame (812); a plurality of guide rods (819) are fixedly connected to the surfaces of the two contact plates (815) away from the sealed space, and the guide rods (819) are movably passed through the liquid storage chamber (813) and extended to the outside of the fixed frame (812); a second return spring (820) is fixedly connected to the surface of the guide rod (819), and the second return spring (820) is fixedly connected to the inner wall of the fixed frame (812).

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