High-concentricity feed granulator main shaft

Abstract

The utility model discloses a high-concentricity feed granulator main shaft. Relates to the technical field of feeders. Comprising a cylindrical main shaft body, a retaining mechanism is arranged on the outer wall of the main shaft body, and the retaining mechanism is used for retaining the concentricity of the main shaft body; the retaining mechanism comprises two lantern rings and a plurality of lead screws, the two lantern rings are arranged at the two ends of the main shaft body in a one-to-one correspondence mode, the lantern rings are detachably connected with the main shaft body, the lead screws are arranged between the two lantern rings at intervals along the same circumference, one end of each lead screw penetrates through one lantern ring, and the other end of each lead screw penetrates through the other lantern ring. The other end of the lead screw penetrates through the other lantern ring, the two sides of the lantern ring are each provided with a nut in an abutting mode, and the nuts are arranged on the lead screw in a screwed mode in a matched mode. The main shaft body can be effectively prevented from being bent in the transportation process, and it is ensured that the main shaft body keeps high concentricity.

Description

Technical Field

[0001] The present application relates to the technical field of feed machines, and in particular to a main shaft of a feed pellet machine with high concentricity. Background Art

[0002] Feed pellet machine (also known as feed pellet machine, feed granulator, feed pellet forming machine) is a feed pelleting equipment. It uses corn, soybean meal, straw, grass, rice husk and other raw materials as feed pellets by crushing the raw materials and pressing them directly into pellets.

[0003] A Chinese patent document with authorization announcement number CN218031404U discloses a spindle sealing structure for a vertical ring die pellet mill, specifically a spindle, a bearing chamber, and a ring die mold. The bearing chamber is provided with two spindle bearings, the spindle cooperates with the spindle bearings, the ring die mold is connected to the bearing chamber, the spindle has an upper sealing ring, the upper part of the bearing chamber is provided with a sealing platform, the sealing ring cooperates with the sealing platform, the sealing platform is provided with an annular groove, the annular groove is provided with an automatic sealing assembly, and the automatic sealing assembly is tightly connected to the sealing ring. This utility model can prevent dust from entering the bearing chamber, eliminating the need for a fan and dust removal device, reducing the production cost of the enterprise and improving the economic benefits of the enterprise; and dust does not enter the bearing chamber, which can prevent dust from damaging the spindle bearings, thereby improving the service life of the spindle bearings.

[0004] However, in the above patent, if the concentricity of the main shaft is poor, a gap is likely to be generated between the main shaft and the sealing component after assembly, thereby causing a decrease in sealing performance. In addition, the main shaft with poor concentricity is prone to vibration during rotation or may cause further damage to the main shaft, thereby reducing the overall life of the feed pellet machine. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the present application provides a high concentricity feed pellet machine main shaft.

[0006] The present application is implemented by the following technical solution: a high concentricity feed pellet machine spindle, comprising a cylindrical spindle body, a retaining mechanism provided on the outer wall of the spindle body, the retaining mechanism being used to maintain the concentricity of the spindle body;

[0007] The retaining mechanism includes two rings and a plurality of screw rods. The two rings are respectively and one-to-one arranged at the two ends of the main shaft body. The rings are detachably connected to the main shaft body. The plurality of screw rods are arranged between the two rings along the same circumference. One end of the screw rod passes through one ring, and the other end of the screw rod passes through the other ring. A nut is pressed on both sides of the ring, and the nut is adaptively screwed on the screw rod.

[0008] Optionally, a through hole is provided on the end face of the collar, the screw rod is passed through the through hole, the outer wall of the screw rod is fitted with the inner wall of the through hole, and the collar can slide along the length direction of the screw rod.

[0009] Optionally, a plurality of accommodating grooves are provided on the inner wall of the collar, and the accommodating grooves are arranged along the same circumference. A brake pad is provided in the accommodating groove, and the bottom of the brake pad is in contact with the outer wall of the main shaft body. A bearing is provided on the top of the brake pad. A plurality of bolts are screwed on the collar, and the bolts are respectively and one-to-one arranged with the accommodating grooves. The tail of the bolt is in contact with the outer wall of the collar, and the head of the bolt is passed through the inner side of the accommodating groove and is adaptively inserted into the inner side of the bearing.

[0010] Optionally, a threaded hole is provided on the collar, and the bolt is adaptively screwed into the threaded hole.

[0011] Optionally, a fixed ring and a movable ring are provided between the two rings, the fixed ring is fixedly connected to one ring, and the movable ring is movably connected to the other ring, a laser emitting unit is provided on the side of the movable ring facing the fixed ring, and several laser receiving units are provided on the side of the fixed ring facing the movable ring, the vertical distances between several laser receiving units and the axis of the fixed ring are the same, and one laser emitting unit can be in a coaxial state with any one of the laser receiving units.

[0012] Optionally, a magnet is provided on the side of the movable ring facing away from the fixed ring, and the movable ring and the sleeve ring are attracted by the magnet.

[0013] Compared with the existing technology, in this application, the brake pad is driven by the bolt to fix the ring on the outer wall of the main shaft body, and the ring and the screw rod are fixed by the locking action of the nut. In this way, under the limiting and supporting action of several screw rods, the main shaft body can be effectively prevented from bending during transportation, ensuring that the main shaft body maintains a high concentricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of this application;

[0015] Figure 2 It is a cross-sectional view of the internal structure of the collar;

[0016] Figure 3 It is a structural diagram of the movable ring;

[0017] Figure 4 It is a structural diagram of the fixed ring;

[0018] In the figure: 1. Spindle body; 2. Ring; 21. Accommodating groove; 22. Brake pad; 23. Bearing; 24. Bolt; 25. Threaded hole; 3. Screw; 30. Nut; 4. Fixed ring; 40. Laser receiving unit; 5. Movable ring; 51. Laser emitting unit; 52. Magnet. DETAILED DESCRIPTION

[0019] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] like Figure 1-4 As shown, a high concentricity feed pellet machine spindle includes a cylindrical spindle body 1, and a holding mechanism is provided on the outer wall of the spindle body 1, which is used to maintain the concentricity of the spindle body 1; the holding mechanism includes two collars 2 and a plurality of screw rods 3, the two collars 2 are respectively and one-to-one arranged at the two ends of the spindle body 1, the collar 2 and the spindle body 1 are detachably connected, and the plurality of screw rods 3 are arranged between the two collars 2 along the same circumference, one end of the screw rod 3 passes through one collar 2, and the other end of the screw rod 3 passes through the other collar 2, and a nut 30 is pressed on both sides of the collar 2, and the nut 30 is adaptively screwed on the screw rod 3.

[0021] After the main shaft body 1 is produced, a collar 2 is set on both sides of the main shaft body 1, and then a number of screw rods 3 are passed through the two collars 2, and finally the screw rods 3 and the collar 2 are locked by nuts 30. In this way, under the limiting and protective effect of the several screw rods 3, the main shaft body 1 will not bend during storage and transportation, ensuring that the main shaft body 1 can always be in a state of high concentricity, which helps to improve the assembly accuracy of the feed pellet machine, and further ensure that the main shaft body 1 and the sealing component can fit tightly, and ensure that the main shaft body 1 can rotate reliably.

[0022] The end face of the collar 2 is provided with a through hole, and the screw rod 3 is passed through the through hole. The outer wall of the screw rod 3 fits with the inner wall of the through hole, and the collar 2 can slide along the length direction of the screw rod 3. In this way, the position of the collar 2 can be adjusted by adjusting the position of the two nuts 30 on both sides of a collar 2, thereby adjusting the distance between the two collars 2, ensuring that the part of the screw rod 3 in the suspended state is shorter, thereby improving the limiting effect of the screw rod 3 on the main shaft body 1.

[0023] The inner wall of the collar 2 is provided with a plurality of receiving grooves 21, arranged along a common circumference. Brake pads 22 are positioned within these grooves 21. The bottom of the brake pads 22 engage the outer wall of the spindle body 1, and the top of the brake pads 22 is provided with bearings 23. Several bolts 24 are screwed onto the collar 2, corresponding to each of the receiving grooves 21. The tails of the bolts 24 engage the outer wall of the collar 2, while the heads of the bolts 24 penetrate the inner sides of the receiving grooves 21 and fit within the inner sides of the bearings 23. When the bolts 24 are rotated, they move toward the inside or outside of the receiving grooves 21, adjusting the depth of the bolts 24 within the receiving grooves 21. Because the heads of the bolts 24 are inserted into the bearings 23, the rotation of the bolts 24 does not rotate the brake pads 22, but rather moves the brake pads 22 toward the inside or outside of the receiving grooves 21. When the brake pad 22 moves toward the outside of the receiving groove 21, it will fit tightly against the outer wall of the main shaft body 1, thus securing the position of the collar 2. Furthermore, the brake pad 22 can be made of rubber, which improves the securing effect of the collar 2 without damaging the outer wall of the main shaft body 1. The collar 2 is provided with a threaded hole 25, into which a bolt 24 is fitted, ensuring that the bolt 24 can be reliably screwed into or out of the receiving groove 21 and drive the brake pad 22.

[0024] A fixed ring 4 and a movable ring 5 are provided between the two collars 2. The fixed ring 4 is fixedly connected to one collar 2, while the movable ring 5 is movably connected to the other collar 2. A magnet 52 is provided on the side of the movable ring 5 facing away from the fixed ring 4, and the movable ring 5 and collar 2 are attracted to each other via magnet 52. A laser emitting unit 51 is provided on the side of the movable ring 5 facing the fixed ring 4, and several laser receiving units 40 are provided on the side of the fixed ring 4 facing the movable ring 5. The vertical distances between the several laser receiving units 40 and the axis of the fixed ring 4 are the same, and one laser emitting unit 51 can be coaxial with any laser receiving unit 40.

[0025] There is an electrical connection between the laser emitting unit 51 and the energy supply unit, thereby ensuring that the laser emitting unit 51 can emit signals in the direction of the laser receiving unit 40. When the laser receiving unit 40 receives the signal from the laser emitting unit 51, the laser receiving unit 40 can transmit a signal to the outside through the buzzer electrically connected thereto, indicating that the laser receiving unit 40 has received the signal. If the buzzer does not respond, it means that the laser receiving unit 40 has received the signal from the laser emitting unit 51. Using the above principle, when the spindle body 1 is transported to the designated position and ready for assembly, the nut 30 can be loosened so that the spindle body 1 is in a free-standing state, and then the movable ring 5 is rotated. If the spindle body 1 still maintains a high degree of coaxiality, then during the rotation of the movable ring 5, the laser emitting unit 51 will be coaxial with several laser receiving units 40 in turn, causing the buzzer of each laser receiving unit 40 to emit a prompt sound. If a buzzer does not emit a prompt sound, it indicates that the spindle body 1 has bent. If the main shaft body 1 is not bent, it can be assembled directly. If the main shaft body 1 is bent, the nut 30 corresponding to the screw rod 3 at the corresponding position can be adjusted so that the two rings 2 can be tilted to a certain extent, thereby correcting the main shaft body 1.

[0026] The above-mentioned embodiments are only preferred embodiments of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and replacements made by technicians in this field based on the present application shall fall within the scope of protection required by the present application.

Claims

1. A high concentricity feed pellet machine spindle, comprising a cylindrical spindle body (1), characterized in that: A retaining mechanism is provided on the outer wall of the spindle body (1), and the retaining mechanism is used to maintain the concentricity of the spindle body (1); The retaining mechanism comprises two collars (2) and a plurality of screw rods (3). The two collars (2) are respectively and one-to-one arranged at the two ends of the main shaft body (1). The collars (2) and the main shaft body (1) are detachably connected. The plurality of screw rods (3) are arranged between the two collars (2) along the same circumference at intervals. One end of the screw rod (3) passes through one collar (2), and the other end of the screw rod (3) passes through the other collar (2). A nut (30) is pressed against both sides of the collar (2), and the nut (30) is adaptively screwed on the screw rod (3).

2. The high concentricity feed pellet machine main shaft according to claim 1, characterized in that: The end face of the collar (2) is provided with a through hole, the screw rod (3) is inserted into the through hole, the outer wall of the screw rod (3) is in contact with the inner wall of the through hole, and the collar (2) can slide along the length direction of the screw rod (3).

3. The high concentricity feed pellet machine main shaft according to claim 1, characterized in that: The inner wall of the collar (2) is provided with a plurality of receiving grooves (21), and the receiving grooves (21) are arranged along the same circumference. A brake pad (22) is provided in the receiving groove (21), and the bottom of the brake pad (22) is in contact with the outer wall of the main shaft body (1). The top of the brake pad (22) is provided with a bearing (23). The collar (2) is screwed with a plurality of bolts (24), and the plurality of bolts (24) are respectively and one-to-one arranged with the plurality of receiving grooves (21). The tail of the bolt (24) is in contact with the outer wall of the collar (2), and the head of the bolt (24) is passed through the inner side of the receiving groove (21) and is adaptively inserted into the inner side of the bearing (23).

4. The high concentricity feed pellet machine main shaft according to claim 3, characterized in that: The collar (2) is provided with a threaded hole (25), and the bolt (24) is adapted to be screwed into the threaded hole (25).

5. The high concentricity feed pellet machine main shaft according to claim 3, characterized in that: A fixed ring (4) and a movable ring (5) are provided between the two collars (2); the fixed ring (4) is fixedly connected to one collar (2); the movable ring (5) is movably connected to the other collar (2); a laser emitting unit (51) is provided on the side of the movable ring (5) facing the fixed ring (4); a plurality of laser receiving units (40) are provided on the side of the fixed ring (4) facing the movable ring (5); the vertical distances between the plurality of laser receiving units (40) and the axis of the fixed ring (4) are the same; and one laser emitting unit (51) can be in a coaxial state with any one of the laser receiving units (40).

6. The high concentricity feed pellet machine main shaft according to claim 5, characterized in that: A magnet (52) is provided on the side of the movable ring (5) facing away from the fixed ring (4), and the movable ring (5) and the sleeve ring (2) are attracted by the magnet (52).

Images