Cross beam structure and polishing machine

Abstract

The utility model relates to the technical field of cross beams of polishing machines, and discloses a cross beam structure which comprises a cross beam and at least one screw assembly, the cross beam is hollow, and at least one clamping groove is formed in the cross beam. The screw assembly comprises a screw and a clamping piece which are connected, the screw and the clamping piece are inserted into the clamping groove in a sliding mode, and the clamping piece is connected with the clamping groove in a clamped mode and used for limiting rotation of the screw relative to the cross beam. The weight of the cross beam can be reduced, and the screw cannot rotate relative to the cross beam when the screw is connected with the cross beam.

Description

Technical Field

[0001] The utility model relates to the technical field of the crossbeam of a polishing machine, in particular to a crossbeam structure and a polishing machine. Background Art

[0002] In a rice polishing machine, the rice is polished by the rotating rollers in a screen assembly. In the screen assembly, there are two crossbeams, two screen frames and a plurality of screens. The two crossbeams are arranged at intervals up and down. The two screen frames are arranged on both sides of the crossbeams. The crossbeams are respectively connected to the two crossbeams through screws and nuts. The plurality of screens are respectively connected to the two screen frames.

[0003] Publication No. CN203170368U discloses a rice milling chamber of a rice milling machine, which includes a main shaft. The main shaft is a hollow tubular structure with ventilation holes. A sand roller is sleeved outside the main shaft. The sand roller has ventilation grooves. There are crossbeams above and below the sand roller. Two left and right screen plates are fixed on the screen frames. The two ends of the screen frames are fixed on the crossbeams through fixing bolts. The sand roller has spiral grooves, and the spiral grooves on the sand roller are of equal depth and equal width structure.

[0004] In the above rice milling machine, the screw is threadedly connected to the crossbeam. The screen frame is sleeved on the screw and fixed to the crossbeam through a nut. Among them, the crossbeam adopts a solid structure. The solid crossbeam has a high cost and is relatively heavy, which is not convenient for installation. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies, and provide a crossbeam structure and a polishing machine to solve the technical problem that the crossbeam in the prior art adopts a solid structure, resulting in a relatively heavy weight and being not convenient for installation.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] In the first aspect, the utility model provides a crossbeam structure, including:

[0008] A crossbeam, the inside of the crossbeam is hollow, and the crossbeam is provided with at least one clamping groove; and

[0009] At least one screw assembly, the screw assembly includes a screw and a clamping member connected to each other. The screw and the clamping member are slidably inserted into the clamping groove, and the clamping member is clamped with the clamping groove to limit the relative rotation of the screw with respect to the crossbeam.

[0010] In one of the embodiments, the size of the clamping member matches the size of the clamping groove, and at least one side surface of the clamping member is a plane, and the plane fits the inner wall of the clamping groove.

[0011] In one embodiment, the screw assembly further includes a limiting member, which is connected to the cross beam and can be engaged with the engaging member to limit the sliding of the engaging member and the screw relative to the card slot.

[0012] In one embodiment, a fixing groove is formed on the peripheral wall of the engaging member;

[0013] The limiting member can slide relative to the cross beam and can be slidably inserted into the fixing groove.

[0014] In one embodiment, the limiting member is threadedly connected to the cross beam.

[0015] In one embodiment, the engaging member is provided with a fixing hole relative to the screw, and the engaging member is fixedly sleeved on the screw through the fixing hole.

[0016] In one embodiment, the screw includes two threaded portions, the two threaded portions are coaxially arranged, the two threaded portions are respectively arranged at both ends of the engaging member, and both are connected to the engaging member.

[0017] In one embodiment, the cross beam is a square tube, and the cross beam structure further includes two receiving plugs, the two receiving plugs are respectively arranged at both ends of the cross beam, and both are connected to the cross beam.

[0018] In one embodiment, both ends of the cross beam are open;

[0019] One side of the receiving plug facing the cross beam is formed with a plugging portion, and the plugging portion is cooperatively inserted into the cross beam.

[0020] In a second aspect, the present invention further relates to a polishing machine, including the above-mentioned cross beam structure.

[0021] Compared with the prior art, the cross beam structure provided by the present invention can reduce the weight of the cross beam by setting the inside of the cross beam as a hollow structure, which is convenient for the operator to install the cross beam on the rice polishing machine. Secondly, the existing cross beam is a solid structure, and threaded holes are formed on the cross beam, so that the screw is threadedly connected to the threaded holes to limit the rotation of the screw relative to the cross beam when installing the nut. In the present invention, a card slot is formed on the cross beam, so that the screw and the engaging member are slidably inserted into the card slot, so that the screw can be inserted through the cross beam through the card slot. By engaging the engaging member with the card slot, the rotation of the screw relative to the cross beam can be limited, and when the nut is threadedly connected to the screw, the screw will not rotate relative to the cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a cross beam assembly provided by an embodiment of the present invention;

[0023] Figure 2 is a partial enlarged schematic view of part A in the present utility model; Figure 1 in the present utility model;

[0024] Figure 3 is a partial structural schematic view of a crossbeam assembly provided by an embodiment of the present utility model;

[0025] Figure 4 is a partial sectional view of a crossbeam assembly provided by an embodiment of the present utility model;

[0026] Figure 5 is a partial structural schematic view of the crossbeam in the crossbeam assembly provided by an embodiment of the present utility model;

[0027] Figure 6 is an exploded view of a screw and a clamping member in the crossbeam assembly provided by an embodiment of the present utility model;

[0028] Figure 7 is a structural schematic view of a screw and a clamping member in the crossbeam assembly provided by an embodiment of the present utility model.

[0029] Description of reference numerals:

[0030] Crossbeam 1;

[0031] Card slot 1a;

[0032] Screw assembly 2;

[0033] Screw 21;

[0034] Thread part 211;

[0035] Clamping member 22;

[0036] Fixed slot 22a;

[0037] Limiting member 23;

[0038] Receiving plug 3;

[0039] Insertion part 31. Detailed implementation manners

[0040] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0041] In order to solve the technical problem that the crossbeam has a heavy weight due to a solid structure, the present utility model provides a crossbeam structure and a polishing machine, which can solve the technical problem that it is inconvenient to install due to the heavy weight of the crossbeam.

[0042] It should be noted that the crossbeam structure described in the present utility model is used for but not limited to rice polishers, etc. For the convenience of description, in the present utility model, only the application of the crossbeam structure to a rice polisher is taken as an example for illustration, and the principle of the crossbeam structure applied to other types of equipment is substantially the same as that applied to the rice polisher, and will not be elaborated one by one here.

[0043] Please refer to Figures 1 to 3 , the present utility model provides a crossbeam structure, including a crossbeam 1 and at least one screw component 2. The inside of the crossbeam 1 is hollow, and the crossbeam 1 is provided with at least one card slot 1a; the screw component 2 includes a screw 21 and a clamping member 22 connected to each other. The screw 21 and the clamping member 22 are slidably inserted into the card slot 1a, and the clamping member 22 is clamped with the card slot 1a to limit the relative rotation of the screw 21 with respect to the crossbeam 1.

[0044] Specifically, in the present utility model, by setting the inside of the crossbeam 1 as a hollow structure, the weight of the crossbeam 1 can be reduced, which is convenient for the operator to install the crossbeam 1 on the rice polisher. Secondly, the existing crossbeam 1 is a solid structure, and threaded holes are provided on the crossbeam 1, so that the screw 21 is threadedly connected with the threaded holes to limit the relative rotation of the screw 21 with respect to the crossbeam 1 when installing nuts. In the present utility model, a card slot 1a is provided on the crossbeam 1, so that the screw 21 and the clamping member 22 are slidably inserted into the card slot 1a, so that the screw 21 can pass through the crossbeam 1 through the card slot 1a. By clamping the clamping member 22 with the card slot 1a, the relative rotation of the screw 21 with respect to the crossbeam 1 can be limited, and when the nut is threadedly connected to the screw 21, the screw 21 will not rotate relative to the crossbeam 1.

[0045] It should be understood that the number of the card slots 1a and the screw components 2 can be one, two or more. For example Figure 1 As shown, in one of the embodiments, the number of the card slots 1a and the screw components 2 is multiple, and the multiple card slots 1a are spaced along the length direction of the crossbeam 1 and correspond one by one.

[0046] It should be understood that the card slot 1a can be inclined relative to the crossbeam 1 or perpendicular to the crossbeam 1.

[0047] It should be understood that the clamping member 22 can be a protrusion formed by the outward extension of the screw 21, and the clamping is realized through the cooperation of the protrusion and the card slot 1a. For example Figure 2 and Figure 3 As shown, in one of the embodiments, the size of the clamping member 22 matches that of the card slot 1a, and at least one side surface of the clamping member 22 is a plane, and the plane fits the inner wall of the card slot 1a.

[0048] When the clamping member 22 is inserted into the clamping groove 1a, the plane of the clamping member 22 fits against the inner wall of the clamping groove 1a, and the sizes of the clamping member 22 and the clamping groove 1a are matched. At this time, the cooperation between the plane and the inner wall of the clamping groove 1a restricts the rotation of the clamping member 22 relative to the clamping groove 1a, enabling the clamping member 22 to restrict the rotation of the screw 21 relative to the cross beam 1.

[0049] It should be understood that the cross-section of the clamping member 22 can be D-shaped, quadrilateral, polygonal, etc. For example, Figure 6 and Figure 7 As shown, in one of the embodiments, the clamping member 22 is a quadrangular prism.

[0050] In order to prevent the screw 21 and the clamping member 22 from sliding relative to the cross beam 1 when installing the nut, therefore, as Figures 2 to 4 shown, in one of the embodiments, the screw assembly 2 further includes a limiting member 23. The limiting member 23 is connected to the cross beam 1 and can be clamped with the clamping member 22 to limit the sliding of the clamping member 22 and the screw 21 relative to the clamping groove 1a.

[0051] The limiting member 23 is connected to the cross beam 1 and is clamped in the clamping groove 1a, which can limit the sliding of the screw 21 relative to the cross beam 1 and prevent the screw 21 from sliding relative to the cross beam 1 during the installation of the nut.

[0052] It should be understood that the limiting member 23 can be a spring pin (not shown in the figure) provided on the clamping member 22. By inserting the spring pin into the limiting hole (not shown in the figure) opened on the cross beam 1, in this way, the limiting member 23 limits the sliding of the clamping member 22. For example, Figure 3 、 4 and 6 shown, in one of the embodiments, a fixing groove 22a is formed on the peripheral wall of the clamping member 22; the limiting member 23 can slide relative to the cross beam 1 and can be slidably inserted into the fixing groove 22a.

[0053] The limiting member 23 is connected to the cross beam 1 and is slidably inserted into the fixing groove 22a. At this time, the cooperation between the limiting member 23 and the fixing groove 22a can limit the sliding of the clamping member 22 and the screw 21 relative to the cross beam 1.

[0054] It should be understood that the limiting member 23 can be slidably inserted into the cross beam 1. In one of the embodiments, the limiting member 23 is threadedly connected to the cross beam 1.

[0055] When it is necessary to insert the limiting member 23 into the fixing groove 22a, rotate the limiting member 23, and the limiting member 23 spirally approaches the clamping member 22 until the limiting member 23 is inserted into the fixing groove 22a, realizing the clamping of the limiting member 23 with the clamping groove 1a.

[0056] It should be understood that the limiting member 23 is a bolt, a screw, etc.

[0057] It should be understood that the axial direction of the limiting member 23 intersects or is perpendicular to the axial direction of the card slot 1a.

[0058] It should be understood that the clamping member 22 can be integrally formed with or separately formed from the screw rod 21. For example, Figure 6 as shown, in one of the embodiments, the clamping member 22 is provided with a fixing hole relative to the screw rod 21, and the clamping member 22 is fixedly sleeved on the screw rod 21 through the fixing hole.

[0059] When it is necessary to realize the connection between the clamping member 22 and the screw rod 21, the clamping member 22 is sleeved on the middle part of the screw rod 21, and then the clamping member 22 is connected to the screw rod 21. At this time, the clamping member 22 and the screw rod 21 are fixed, realizing the connection between the clamping member 22 and the screw rod 21. In this embodiment, the clamping member 22 is separately formed from the screw rod 21.

[0060] It should be understood that the clamping member 22 can be integrally formed with or separately formed from the screw rod 21. For example, Figure 7 as shown, in one of the embodiments, the screw rod 21 includes two threaded portions 211, the two threaded portions 211 are coaxially arranged, and the two threaded portions 211 are respectively arranged at both ends of the clamping member 22 and are both connected to the clamping member 22.

[0061] It should be understood that the two threaded portions 211 are arranged on both sides of the cross beam 1 and are used to connect with the sieve frames on both sides of the cross beam 1.

[0062] In this embodiment, a cylinder is machined on the square shaft, and then an external thread is machined on the outer wall of the cylinder, and the clamping member 22 is integrally formed with the two threaded portions 211.

[0063] It should be understood that the cross beam 1 can be a pipe body of various shapes. For example, Figure 1 and Figure 3 as shown, in one of the embodiments, the cross beam 1 is a square pipe, and the structure of the cross beam 1 further includes two receiving plugs 3, and the two receiving plugs 3 are respectively arranged at both ends of the cross beam 1 and are both connected to the cross beam 1.

[0064] Specifically, the square pipe is a standard part and can be obtained by purchase with a low price. Secondly, the outer wall of the square pipe is a plane connected in sequence, and the planes are connected by arc surfaces. The side surface of the sieve frame can be attached to the plane of the square pipe, so that when the sieve frame is fixed to the cross beam 1 through the nut and the screw rod 21, the sieve frame can be attached to the square pipe, increasing the connection strength between the sieve frame and the cross beam 1.

[0065] By providing the two receiving plugs 3 and connecting the two receiving plugs 3 to the cross beam 1, the connection cross beam 1 can be fixed to the frame of the rice polishing machine.

[0066] It should be understood that the connection between the receiving plug 3 and the cross beam 1 can be realized by welding, bonding, bolts and other means. For example, Figure 3and Figure 4 As shown, in one of the embodiments, both ends of the cross beam 1 are open; a plug-in portion 31 is formed on one side of the receiving plug 3 facing the cross beam 1, and the plug-in portion 31 is fitted and inserted into the cross beam 1.

[0067] When it is necessary to connect the receiving plug 3 to the cross beam 1, the plug-in portion 31 can be fitted and inserted into the cross beam 1, which is convenient for installation.

[0068] The present utility model also relates to a polishing machine, which includes the above-mentioned cross beam 1 structure.

[0069] The specific embodiments of the present utility model described above do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model should be included within the protection scope of the claims of the present utility model.

Claims

1. A beam structure, characterized in that: include: A crossbeam, wherein the interior of the crossbeam is hollow and the crossbeam is provided with at least one slot; and At least one screw assembly, the screw assembly includes a screw and a clamping piece connected to each other, the screw and the clamping piece are slidably inserted in the clamping slot, and the clamping piece is clamped with the clamping slot to limit the screw from rotating relative to the crossbeam.

2. The crossbeam structure according to claim 1, characterized in that: The size of the clamping member matches that of the clamping slot, and at least one side surface of the clamping member is a plane, and the plane fits the inner wall of the clamping slot.

3. The crossbeam structure according to claim 1, characterized in that: The screw rod assembly further comprises a limiting member, which is connected to the cross beam and can be engaged with the clamping member to limit the sliding of the clamping member and the screw rod relative to the clamping groove.

4. The crossbeam structure according to claim 3, characterized in that: A fixing groove is formed on the peripheral wall of the clamping member; The limiting member can slide relative to the crossbeam and can be slidably inserted in the fixing groove.

5. The crossbeam structure according to claim 4, characterized in that: The limiting member is threadedly connected to the crossbeam.

6. The crossbeam structure according to claim 1, characterized in that: The clamping piece is provided with a fixing hole relative to the screw rod, and the clamping piece is fixedly sleeved on the screw rod through the fixing hole.

7. The crossbeam structure according to claim 1, characterized in that: The screw rod comprises two threaded parts, the two threaded parts are coaxially arranged, the two threaded parts are respectively arranged at two ends of the clamping part, and both are connected to the clamping part.

8. The crossbeam structure according to claim 1, characterized in that: The crossbeam is a square tube, and the crossbeam structure also includes two socket plugs, which are respectively arranged at two ends of the crossbeam and are both connected to the crossbeam.

9. The crossbeam structure according to claim 8, characterized in that: Both ends of the crossbeam are open; A plug-in portion is formed on one side of the socket plug facing the crossbeam, and the plug-in portion is plugged into the crossbeam.

10. A polishing machine, characterized in that: It comprises the beam structure as described in any one of claims 1 to 9.

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