Low-noise type crushing device for laboratory

Abstract

The invention relates to the technical field of crushing equipment, and discloses a low-noise type laboratory crushing device which comprises an equipment shell, a crushing box is arranged on the inner wall of the equipment shell, two crushing shafts are rotationally connected to the inner wall of the crushing box through bearings, one end of one crushing shaft is fixedly connected with a flexible connecting belt, and the other end of the crushing shaft is fixedly connected with a motor; the end, away from the smashing shaft, of the flexible connecting belt is fixedly connected with a driving shaft. When the fixed sleeve and the guide frame move relatively, the eccentric pipe drives the sliding sheets to eccentrically rotate on the inner wall of the fixed sleeve, so that the space between every two adjacent sliding sheets is changed, pressure oil is driven to penetrate through the first through hole, and due to the fact that certain resistance exists when the pressure oil penetrates through the first through hole, the pressure oil is prevented from flowing out. Therefore, a damping effect is generated for rotation of the eccentric pipe caused by relative movement of the guide frame and the fixed sleeve, the relative movement of the guide frame and the fixed sleeve is slowed down, vibration transmission is reduced, and noise is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of pulverizing equipment, in particular to a low-noise pulverizing device for laboratory use. Background Art

[0002] In medical research laboratories, scientists often need to crush hard tissues such as femoral heads. This process makes it easier to extract biological molecules such as cells, proteins, and DNA from bone tissue for subsequent pathology, biomechanics, or cell culture experiments.

[0003] For example, a bone processing mechanism suitable for collagen extraction provided by announcement number CN112916171A relates to the technical field of collagen extraction and solves the problem that the existing bone processing device cannot perform effective crushing operations before extracting collagen from bones during actual application, so the extraction efficiency is low and the effect is poor. Furthermore, the bones after boiling cannot be effectively worn out, which will cause garbage accumulation and subsequent environmental pollution. The problem includes a driving mechanism, which is fixedly connected to the left end surface of the supporting mechanism. In the present invention, the crushing cylinder is driven to move back and forth up and down along the screw by the rotation connection of the rotating rod and the guide rod, while the crushing cylinder and the sleeve are rotated in the opposite direction. The design can utilize a variety of crushing methods to fully crush and grind the input bones, and utilize 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 a lot of noise when crushing, which will cause physical and mental discomfort to scientists in the laboratory if used for a long time, and cannot meet the needs of laboratory use. Summary of the invention

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

[0006] To achieve the above object, the present invention provides the following technical solutions: The equipment housing has a crushing box on the inner wall of the equipment housing, and the inner wall of the crushing box is rotatably connected to two crushing shafts through a bearing, one end of one of the crushing shafts is fixedly connected to a flexible connection belt, and the end of the flexible connection belt away from the crushing shaft is fixedly connected to a driving shaft, so that the vibration generated by the crushing shaft during operation is reduced by the flexible connection belt and transmitted to the driving shaft; 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 from being transmitted to the outside through the equipment housing; A buffer assembly is arranged between the crushing box and the equipment housing, and the buffer assembly is used to weaken the transmission of vibration generated by the crushing box during operation to the equipment housing, and the buffer assembly includes a radial buffer assembly and an axial buffer assembly; The radial buffer assembly comprises two connecting frames fixedly connected to the top and bottom of the inner wall of the equipment housing, one end of the two connecting frames opposite to each other is fixedly connected to a guide frame, one end of the crushing box is fixedly connected to a fixed sleeve, the inner wall of the fixed sleeve is eccentrically connected to an eccentric tube, the surface of the eccentric tube is movably provided with a plurality of sliding vanes moving along the radial direction of the eccentric tube, a plurality of first through holes are provided at one end of the sliding vane away from the eccentric tube, pressure oil is filled between the eccentric tube and the fixed sleeve, and the guide frame is eccentrically connected to the middle part of the fixed sleeve; The axial buffer assembly includes a connecting plate fixedly connected to one end of the crushing box and a fixing frame fixedly connected to the inner wall of the equipment housing, the inner wall of the fixing frame is fixedly connected with a liquid storage chamber, the fixing frame and the liquid storage chamber are both C-shaped structures, the inner wall of the liquid storage chamber is fixedly connected with a liquid sac connected to the inner wall of the liquid storage chamber, and the connecting plate is located between the top liquid sac and the bottom liquid sac, a blocking block is fixedly connected to the middle of the position between the fixing frame and the liquid storage chamber, a second through hole is opened in the middle of the blocking block, and pressure oil is arranged inside the liquid sac, so that when the connecting plate squeezes the liquid sac, the pressure oil on the inner wall of the liquid sac is not easy to penetrate the second through hole.

[0007] Preferably, a feed hopper is fixedly connected to the top of the equipment shell, and a feed pipe is fixedly connected to the top of the feed hopper. The feed pipe is arranged at an angle, and the top of the feed pipe is an open structure. A top cover is hinged on the top of the feed pipe to seal the top of the feed pipe to prevent noise from propagating from the outlet of the feed pipe. A fixed bracket is fixedly connected to the bottom of the equipment shell.

[0008] Preferably, the surface of the crushing shaft is fixedly connected with crushing teeth for crushing the femur, the ends of the two crushing shafts away from the position of the soft connecting belt are respectively fixedly connected with gears, and the surfaces of the two gears are meshed, the inner wall of the crushing box is fixedly connected with a comb plate, and the comb plate and the crushing teeth are staggered, the top and bottom of the crushing box are respectively fixedly connected with rubber connecting belts, and the rubber connecting belts are fixedly connected to the inner wall of the connecting frame.

[0009] Preferably, a gear guard cover is fixedly embedded in one end of the device housing corresponding to the gear position so that the gear guard cover can protect the gear, and a drive mounting cover is fixedly connected to one end of the device housing corresponding to the drive shaft position, and the drive shaft is rotatably connected to the middle part of the drive mounting cover through a bearing so as to support the drive shaft, and a soft connecting belt is used to prevent vibration from being transmitted to the device housing through the drive mounting cover.

[0010] Preferably, the upper and lower ends of the eccentric tube are rotatably connected to the fixed sleeve via sealing rings, so that a dynamic seal is formed between the middle part of the surface of the eccentric tube and the fixed sleeve.

[0011] Preferably, a movable cavity is opened on the surface of the eccentric tube corresponding to the sliding vane position, and the sliding vane is movably connected to the fixed sleeve and the inner wall of the movable cavity, and a metal spring is fixedly connected to one end of the sliding vane corresponding to the eccentric tube position, and the metal spring is tightly fitted to the inner wall of the movable cavity.

[0012] Preferably, the top and bottom of the eccentric tube are respectively fixedly connected with a connecting piece, and one end of the connecting piece is fixedly connected with a first return spring, and two of the first return springs are fixedly connected to the top and bottom of the fixed sleeve.

[0013] Preferably, one end of the liquid capsule away from the liquid storage chamber is fixedly connected to a contact plate, and the connecting plate is movably connected between the top contact plate and the bottom contact plate, and one end of the opposite surfaces of the two contact plates is smoothly arranged to reduce the friction resistance between the connecting plate and the contact plate.

[0014] Preferably, a plurality of partitions are fixedly connected at positions between the fixed frame and the liquid storage chamber, so as to form a sealed space between the liquid bag, the partitions, the liquid storage chamber and the fixed frame, and a plurality of guide rods are fixedly connected to the back surfaces of the two contact plates away from the sealed space, and the guide rods movably penetrate the liquid storage chamber and extend to the outside of the fixed frame, and 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.

[0015] 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, the eccentric tube drives the slide to rotate eccentrically on the inner wall of the fixed sleeve, so that the space between the two adjacent slides changes, and drives the pressure oil to pass through the first through hole. Since there is a certain resistance when the pressure oil passes through the first through hole, the eccentric tube rotates due to the relative movement of the guide frame and the fixed sleeve, thereby producing a damping effect, thereby slowing down the relative movement of the guide frame and the fixed sleeve, reducing the transmission of vibration and reducing noise generation; 2. When the present invention also generates axial vibration through the connecting plate at the same time, the connecting plate will drive the top and bottom contact plates to squeeze the liquid capsule, and make the pressure oil inside the liquid capsule pass through the second through hole in the liquid storage chamber to pass through the block. At this time, the second through hole will hinder the penetrating pressure oil, and then have a damping effect on the squeezing of the liquid capsule, thereby buffering the axial vibration of the connecting plate through the contact plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a low-noise laboratory pulverizing device of the present invention; Figure 2This is a partial cross-sectional view of the overall structure of a low-noise laboratory pulverizing device of the present invention. Figure 1 ; Figure 3 This is a partial cross-sectional view of the overall structure of a low-noise laboratory pulverizing device of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the structure of a crushing box of a low-noise laboratory crushing device of the present invention; Figure 5 This is a cross-sectional view of the structure of a crushing box of a low-noise laboratory crushing device of the present invention; Figure 6 This is a schematic diagram of the structure of a buffer assembly of a low-noise laboratory pulverizing device of the present invention; Figure 7 This is a cross-sectional view of the fixed sleeve structure of a low-noise laboratory pulverizing device of the present invention. Figure 1 ; Figure 8 This is a cross-sectional view of the fixed sleeve structure of a low-noise laboratory pulverizing device of the present invention. Figure 2 ; Fig. 9 This is a partial exploded view of the structure of a buffer assembly of a low-noise laboratory pulverizing device of the present invention; Fig.10 This is a cross-sectional view of the fixed frame structure of a low-noise laboratory pulverizing device of the present invention. Figure 1 ; Fig.11 This is a cross-sectional view of the fixed frame structure of a low-noise laboratory pulverizing device of the present invention. Figure 2 .

[0017] In the figure: 1. Equipment housing; 2. Feed hopper; 3. Feed pipe; 4. Top cover; 5. Crushing box; 6. Crushing shaft; 7. Crushing teeth; 801, connecting frame; 802, guide frame; 803, fixed sleeve; 804, eccentric tube; 805, movable cavity; 806, metal spring; 807, sliding plate; 808, first through hole; 809, connecting plate; 810, first return spring; 811, connecting plate; 812, fixing frame; 813, liquid storage cavity; 814, liquid capsule; 815, contact plate; 816, blocking block; 817, second through hole; 818, partition; 819, guide rod; 820, second return spring; 9. Gear; 10. Comb plate; 11. Rubber connecting belt; 12. Gear protection cover; 13. Drive mounting cover; 14. Drive shaft; 15. Soft connecting belt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-11 The present invention provides a technical solution: comprising: The equipment shell 1 has a feed hopper 2 fixedly installed on the top of the equipment shell 1, and a feed pipe 3 fixedly installed on the top of the feed hopper 2. The feed pipe 3 is tilted, and the top of the feed pipe 3 is an open structure. The top of the feed pipe 3 is hinged with a top cover 4 to seal the top of the feed pipe 3 to prevent noise from propagating from the outlet of the feed pipe 3. The bottom of the equipment shell 1 has a fixed bracket fixedly installed. The inner wall of the equipment shell 1 is provided with a crushing box 5. The inner wall of the crushing box 5 is rotatably connected to two crushing shafts 6 through bearings. Crushing teeth 7 for crushing femurs are fixedly installed on the surface of the crushing shaft 6. Gears 9 are fixedly installed on the ends of the two crushing shafts 6 away from the position of the soft connection belt 15, and the surfaces of the two gears 9 are meshed. A comb plate 10 is fixedly installed on the inner wall of the crushing box 5. The comb plates 10 are staggered with the crushing teeth 7, one end of one crushing shaft 6 is fixedly installed with a soft connection belt 15, and the end of the soft connection belt 15 away from the crushing shaft 6 is fixedly installed with a driving shaft 14, so that the vibration generated by the crushing shaft 6 due to work is reduced by the soft connection belt 15 and transmitted to the driving shaft 14, and the end of the equipment housing 1 corresponding to the position of the gear 9 is fixedly embedded with a gear protection cover 12, so that the gear protection cover 12 protects the gear 9, and the end of the equipment housing 1 corresponding to the position of the drive shaft 14 is fixedly installed with a drive installation cover 13, and the drive shaft 14 is rotatably connected to the middle part of the drive installation cover 13 through a bearing, so as to support the drive shaft 14, and the soft connection belt 15 is used to prevent the vibration from being transmitted to the equipment housing 1 through the drive installation cover 13; When in use, the top cover 4 is opened and the femur is put into the feed hopper 2 from the feed pipe 3, and then enters the crushing box 5 through the guide of the feed hopper 2, wherein the rubber connecting belt 11 is provided so that the connection between the crushing box 5 and the connecting frame 801 is a soft connection, so that the material is guided and the vibration generated by the operation of the crushing box 5 is prevented from being transmitted to the device housing 1, wherein the protruding gear 9 is protected by the gear protection cover 12, and the drive installation cover 13 is provided to provide an installation space for the soft connecting belt 15, and the soft connecting 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, and 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 connecting belt 15, and the crushing teeth 7 on the two crushing shafts 6 rotate relative to each other through the two meshing gears 9, and the femur is crushed in cooperation with the comb plate 10; 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 crushing box 5 from being transmitted to the outside through the equipment housing 1. When the crushing box 5 is working, the crushing of the femur will cause vibration, causing other structures to resonate, especially causing the equipment housing 1 to resonate, causing the equipment housing 1 to generate noise and propagate to the outside. The gap between the equipment housing 1 and the crushing box 5 is filled with sound-absorbing cotton, which can help the noise generated by the crushing box 5 to spread outward. A buffer assembly is arranged between the crushing box 5 and the equipment housing 1, and the buffer assembly is used to weaken the transmission of vibration generated by the crushing box 5 during operation to the equipment housing 1, and the buffer assembly includes a radial buffer assembly and an axial buffer assembly; The radial buffer assembly includes two connecting frames 801 fixedly mounted on the top and bottom of the inner wall of the equipment housing 1, the top and bottom of the crushing box 5 are respectively fixedly mounted with rubber connecting belts 11, and the rubber connecting belts 11 are fixedly mounted on the inner wall of the connecting frames 801, one end of the opposite surfaces of the two connecting frames 801 are fixedly mounted with guide frames 802, one end of the crushing box 5 is fixedly mounted with a fixed sleeve 803, the inner wall of the fixed sleeve 803 is eccentrically rotatably connected with an eccentric tube 804, the upper and lower ends of the eccentric tube 804 are respectively rotatably connected with the fixed sleeve 803 through sealing rings, so that a dynamic seal is formed between the middle part of the surface of the eccentric tube 804 and the fixed sleeve 803, and the surface of the eccentric tube 804 is movably provided with a plurality of sliding vanes 807 that move along the radial direction of the eccentric tube 804, and the sliding vanes 807 are away from the eccentric tube 80 A plurality of first through holes 808 are provided at one end of the eccentric tube 804 at position 4, pressure oil is filled between the eccentric tube 804 and the fixed sleeve 803, the guide frame 802 is eccentrically rotatably connected to the middle part of the fixed sleeve 803, a movable cavity 805 is provided on the surface of the eccentric tube 804 corresponding to the position of the slide 807, and the slide 807 is movably connected to the inner wall of the fixed sleeve 803 and the movable cavity 805, a metal spring 806 is fixedly installed at one end of the slide 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, the top and bottom of the eccentric tube 804 are respectively fixedly installed with connecting pieces 809, and one end of the connecting piece 809 is fixedly installed with a first return spring 810, and two first return springs 810 are fixedly installed at the top and bottom of the fixed sleeve 803; When the above structure is in use, when the fixed sleeve 803 generates radial vibration, the fixed sleeve 803 and the guide frame 802 will move relative to each other in the horizontal direction, so that the guide frame 802 squeezes the eccentric tube 804 and causes the eccentric tube 804 to rotate on the inner wall of the fixed sleeve 803, and the eccentric tube 804 drives the sliding plate 807 to rotate, so that the space between two adjacent sliding plates 807 will change. When the space between two adjacent sliding plates 807 increases, pressure oil will pass through the first through hole 808 and be injected therein, and when the space between two adjacent sliding plates 807 decreases, the pressure oil will pass through the first through hole 808 and be squeezed out. Since there is a certain resistance when the pressure oil passes through the first through hole 808, the relative movement of the guide frame 802 and the fixed sleeve 803 causes the eccentric tube 804 to rotate and produce a damping effect, thereby slowing down the relative movement of 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.

[0020] The axial buffer assembly includes a connecting plate 811 fixedly installed at one end of the crushing box 5 and a fixing frame 812 fixedly installed on the inner wall of the equipment housing 1, a liquid storage chamber 813 is fixedly installed on the inner wall of the fixing frame 812, and the fixing frame 812 and the liquid storage chamber 813 are both C-shaped structures, and a liquid capsule 814 connected to the inner wall of the liquid storage chamber 813 is fixedly installed on the inner wall of the liquid storage chamber 813, and the connecting plate 811 is located between the top liquid capsule 814 and the bottom liquid capsule 814, and a blocking block 816 is fixedly installed in the middle of the position between the fixing frame 812 and the liquid storage chamber 813, and a second through hole 817 is opened in the middle of the blocking block 816, and pressure oil is arranged 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, and the liquid capsule 814 is far away from the end of the liquid storage chamber 813. A contact plate 815 is fixedly installed, and a connecting plate 811 is movably connected between the top contact plate 815 and the bottom contact plate 815. One end of the opposite surface of the two contact plates 815 is set to be smooth so as to reduce the friction resistance between the connecting plate 811 and the contact plate 815. A plurality of partitions 818 are fixedly installed at the positions between the fixed frame 812 and the liquid storage chamber 813 so as 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 installed on the back surfaces of the two contact plates 815 away from the sealed space, and the guide rods 819 are movably penetrated through the liquid storage chamber 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. When the above structure is in use, when the connecting plate 811 generates axial vibration, the connecting plate 811 will drive the top and bottom contact plates 815 to squeeze the liquid capsule 814, and make the pressure oil inside the liquid capsule 814 pass through the second through hole 817 in the liquid storage chamber 813 and penetrate the block 816. At this time, the second through hole 817 will hinder the penetrating pressure oil, and then have a damping effect on the squeezing of the liquid capsule 814, so that the axial vibration of the connecting plate 811 is buffered by the contact plate 815. By setting the guide rod 819, the movement of the liquid storage chamber 813 can be guided. At the same time, by setting the second return spring 820, the contact plate 815 can have the ability to recover.

[0021] Working principle: When in use, the invention opens the top cover 4 and puts the femur from the feed pipe 3 into the inside of the feed hopper 2, and then enters the inside of the crushing box 5 through the guidance of the feed hopper 2, wherein the rubber connecting belt 11 is provided so that the connection between the crushing box 5 and the connecting frame 801 is a soft connection, which can guide the material while preventing the vibration generated by the operation of the crushing box 5 from being transmitted to the device housing 1, wherein the protruding gear 9 is protected by the gear protection cover 12, and the drive installation cover 13 is provided to provide an installation space for the soft connecting belt 15, and the soft connecting 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 drive shaft 14; When working, 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 connecting belt 15, and through two meshing gears 9, the crushing teeth 7 on the two crushing shafts 6 rotate relatively, and cooperate with the comb plate 10 to crush the femur; When the crushing box 5 is working, the crushing of the femur will generate vibration, causing other structures to resonate, especially causing the device housing 1 to resonate, causing the device housing 1 to generate noise that propagates to the outside. The gap between the device housing 1 and the crushing box 5 is filled with silencer cotton, which can help the noise generated by the crushing box 5 to spread outward. When the crushing box 5 vibrates, the crushing box 5 will drive the fixed sleeve 803 and the connecting plate 811 to vibrate respectively. When the radial vibration is buffered, when the fixed sleeve 803 generates radial vibration, the fixed sleeve 803 and the guide frame 802 will move relative to each other in the horizontal direction. Since the guide frame 802 rotates eccentrically on the inner wall of the eccentric tube 804, when the fixed sleeve 803 and the guide frame 802 move relative to each other, 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, the eccentric tube 804 will 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, the metal spring 806 will make A plurality of slides 807 move on the inner wall of the movable cavity 805, which causes the space between two adjacent slides 807 to change. When the space between two adjacent slides 807 increases, pressure oil will be injected into the space through the first through hole 808, and when the space between two adjacent slides 807 decreases, the pressure oil will penetrate the first through hole 808 and be squeezed out. Since there is a certain resistance when the pressure oil penetrates the first through hole 808, the relative movement of the guide frame 802 and the fixed sleeve 803 causes the eccentric tube 804 to rotate and produce a damping effect, thereby slowing down the relative movement of 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 the initial state. When buffering radial vibration, when the connecting plate 811 generates axial vibration, the connecting plate 811 will drive the top and bottom contact plates 815 to squeeze the liquid capsule 814, and make the pressure oil inside the liquid capsule 814 pass through the second through hole 817 in the liquid storage chamber 813 and penetrate the block 816. At this time, the second through hole 817 will hinder the penetrating pressure oil, and then have a damping effect on the squeezing of the liquid capsule 814, so that the axial vibration of the connecting plate 811 is buffered by the contact plate 815. By setting the guide rod 819, the movement of the liquid storage chamber 813 can be guided. At the same time, by setting the second return spring 820, the contact plate 815 can have the ability to recover.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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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