Bearing structure of cement clinker screw conveyor

Abstract

The utility model discloses a cement clinker screw conveyer bearing structure which comprises a connecting pipe, a screw shaft and a bearing, a conveying cavity is arranged in the connecting pipe, a plurality of adjusting plates are arranged on the outer wall of the connecting pipe, and each adjusting plate is provided with three sets of screws capable of being screwed. The screw can be switched between the position extending into the axis of the conveying cavity and the position far away from the axis of the conveying cavity, the screw shaft is provided with at least two sections including the first screw shaft and the second screw shaft, the bearing comprises a bearing bush and a rotating shaft arranged in the bearing bush, and an oil way is arranged between the bearing bush and the rotating shaft. The two ends of the rotating shaft are connected with the first spiral shaft and the second spiral shaft correspondingly. A first nut seat matched with the screw rod is arranged on the peripheral wall of the bearing bush, and the screw rod is screwed into the first nut seat and can adjust the relative axis position of the rotating shaft. The screw and the nut are arranged on the connecting pipe and the bearing bush respectively, so that the axis position of the rotating shaft is adjusted, and the rotating stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ship unloader, especially relates to a cement clinker screw conveyor bearing structure. BACKGROUND

[0002] Screw ship unloader is with the horizontal screw conveyor, vertical screw conveyor and special material taking device of non-flexible traction member as the main working mechanism of ship unloader, it is a kind of high-efficiency continuous bulk cargo ship unloader. Using ship unloader can greatly improve the unloading efficiency, the smallest dust pollution can keep the environment clean, high efficiency and environmental protection.

[0003] But in the actual operation process, when the length of the screw shaft is long, the screw shaft is generally supported or connected by bearings in the middle, because there is a predetermined gap between the outer wall of the rotating shaft and the inner wall of the connecting pipe, so that the stability of rotation is ensured, and the stability of conveying is ensured.

[0004] At present, screw ship unloader is applied to the field of cement clinker ship unloader, and there is no stable experience on the market, in the actual use process, the traditional screw intermediate bearing structure is impacted and worn by materials in cement clinker conveying, so that the bearing concentricity and structural stability are very poor.

[0005] The existing screw shaft connecting bearing structure generally adopts two half tile bearings spliced and fixed, and then the positioning of the screw shaft is realized, so that the following deficiencies exist:

[0006] 1, adjustment is more troublesome, the bearing is fixed with the connecting pipe, the bearing generally includes a support arm and an outer peripheral part integrated with the support arm, the outer peripheral part is fixed with the inner wall of the connecting pipe, so that a large space of the conveying cavity is occupied, and then the resistance is large, which affects the stability of conveying;

[0007] 2, the matching surface machining precision of bearing seat and outer tube is high, and the concentricity and parallelism defects caused by machining precision are irreversible in actual use;

[0008] 3, the length of the screw shaft is long, so the transportation and assembly are difficult. Utility model content

[0009] The utility model discloses a kind of screw machine bearing structures applied to the field of cement clinker screw ship unloader, to set up the screw shaft as two section structure, then pass through bearing connection, and bearing is integrally arranged, adjusting device is arranged between bearing and connecting pipe, bearing concentricity can be adjusted directly without disassembling equipment, then ensure that the concentricity of two section screw shaft is consistent, simultaneously, adjusting structure is fixed by multiple nuts, improve the stability of equipment.

[0010] In order to achieve the above object, the utility model provides a cement clinker screw conveyor bearing structure, including,

[0011] The adapter pipe is internally provided with a conveying cavity, and the outer wall of the adapter pipe is provided with a plurality of adjusting plates, the adjusting plates are provided with three groups of screw rods which can be screwed, and the screw rods can be switched between the position of extending into the axis of the conveying cavity and the position of being away from the axis of the conveying cavity.

[0012] The spiral shaft is provided with at least two sections, including a first spiral shaft and a second spiral shaft.

[0013] The bearing includes a bearing bush and a rotating shaft arranged in the bearing bush, an oil channel is arranged between the bearing bush and the rotating shaft, and the two ends of the rotating shaft are connected with the first spiral shaft and the second spiral shaft respectively.

[0014] The outer peripheral wall of the bearing bush is provided with a first nut seat matched with the screw rod, the screw rod is screwed into the first nut seat and can adjust the relative axis position of the rotating shaft.

[0015] In actual design, the conveying structure of the ship unloader is large in size, and accordingly, the tolerance is large. By arranging the spiral shaft in a multi-section structure, transportation and assembly are facilitated. However, the key to the design is how to ensure the axis consistency between the multi-section spiral shafts. Therefore, the screw rod and the nut are arranged in the adapter pipe and the bearing bush respectively, so as to adjust the axis position of the rotating shaft and improve the stability of rotation. Meanwhile, the arrangement of the screw rod reduces the large conveying cavity space occupied by the existing bearing, improves the stability of conveying, and at the same time, the adapter pipe is a separate individual, so that the transportation and installation of the conveying pipe are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a lengthwise sectional view of the utility model;

[0017] Fig. 2 It is a radial sectional view of the utility model;

[0018] Fig. 3 It is a schematic view of the screw rod cooperation of the bearing bush box;

[0019] Fig. 4 It is a three-dimensional schematic view of the bearing bush.

[0020] In the drawings,

[0021] 1 is an adapter pipe, 10 is a conveying cavity,

[0022] 2 is an adjusting plate,

[0023] 3 is a screw rod, 31 is a first nut seat, 32 is a second nut seat, 33 is a supporting rod, 33a is a through hole, 33b is a supporting part, and 33c is an arc surface.

[0024] 41 is the oil delivery channel, 42 is the oil hole, 43 is the oil circuit,

[0025] 5 is the rotating shaft, 50 is the bearing, 51 is the first screw shaft, 52 is the second screw shaft,

[0026] 6 is a slot, 61 is a fixing bolt,

[0027] 71 is the first coupling seat, 72 is the second coupling seat,

[0028] 8 is the inspection window. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] like Figs. 1 to 4 As shown, a bearing structure of a cement clinker screw conveyor includes:

[0033] The adapter pipe 1 is internally provided with a conveying cavity 10, and the outer wall of the adapter pipe 1 is provided with a plurality of adjusting plates 2, the adjusting plates 2 are provided with three groups of screw rods 3 which can be screwed and are distributed in the circumferential direction of the outer wall of the adapter pipe, and the screw rods 3 can be switched between a position extending into the axis of the conveying cavity 10 and a position away from the axis of the conveying cavity 10.

[0034] The spiral shaft is provided with at least two sections, including a first spiral shaft and a second spiral shaft.

[0035] The bearing includes a bearing bush 50 and a rotating shaft 5 arranged in the bearing bush 50, an oil channel 43 is arranged between the bearing bush 50 and the rotating shaft 5, and the two ends of the rotating shaft 5 are connected with the first spiral shaft and the second spiral shaft respectively.

[0036] The outer peripheral wall of the bearing bush 50 is provided with a first nut seat 31 matched with the screw rod 3, the screw rod 3 is screwed into the first nut seat 31 and can adjust the relative axial position of the rotating shaft 5.

[0037] In actual design, the conveying structure of the ship unloader is large in size, and the tolerance is large accordingly; the spiral shaft is arranged in a multi-section structure, thereby facilitating transportation and assembly; however, the key of the design is how to ensure the axial consistency between the multi-section spiral shafts; the axial position of the rotating shaft 5 is adjusted by arranging the screw rod 3 and the nut on the adapter pipe 1 and the bearing bush 50 respectively, thereby improving the stability of rotation, and the arrangement of the screw rod 3 also reduces the large space occupied by the bearing in the conveying cavity 10, thereby improving the stability of conveying; meanwhile, the adapter pipe 1 is a separate individual, thereby facilitating transportation and installation of the conveying pipe.

[0038] Specifically, the adapter pipe 1 is provided with a second nut seat 32, the first nut seat 31 and the second nut are provided with a support rod 33, the support rod 33 is provided with a through hole 33a through which the screw rod 3 passes, thereby ensuring the installation stability and support stability between the bearing and the adapter pipe 1, and improving the conveying area of the conveying cavity 10 and the stability of conveying.

[0039] In the embodiment of the utility model, the through hole 33a is provided with an internal thread, thereby improving the screwing stability of the screw rod 3.

[0040] Specifically, the inner wall of the second nut seat 32 is in an arc shape, the outer end of the support rod 33 is provided with a support portion 33b, the support portion extends outward and has an outer diameter larger than that of the support rod 33, the support portion abuts against the inner wall of the conveying cavity 10 and is provided with an arc surface 33c, thereby improving the support effect and facilitating installation and fixation.

[0041] In the embodiment of the utility model, the outer side of the second nut seat 32 is further provided with a fixing bolt 61, the fixing bolt 61 is installed on the screw rod 3, when the screw rod 3 is screwed to the predetermined length, the locking of the screw rod 3 can be realized through the screwing of the fixing bolt 61.

[0042] Specifically, the screw rod 3 is a hollow structure, the hollow structure is an oil conveying channel 41, the first nut seat 31 is provided with an oil hole 42 in communication with an oil way 43, thereby ensuring the rotation stability and heat dissipation stability of the bearing.

[0043] In the embodiment of the utility model, the bearing bush 50 is provided with two and is symmetrically arranged, one of the bearing bushes 50 is provided with a first nut seat 31, the other bearing bush 50 is provided with two nut seats, the two bearing bushes 50 are fixed through a threaded structure, the inner wall of the bearing bush 50 is provided with a plurality of spaced apart clamping grooves 6, the clamping groove 6 is provided with a sealing sleeve.

[0044] Specifically, the both ends of the rotating shaft 5 are provided with a first shaft hub 71, thereby facilitating the fixing of the screw shaft.

[0045] In the embodiment of the utility model, the both ends of the connecting pipe 1 are provided with a second shaft hub 72, thereby facilitating the fixing of the conveying pipe.

[0046] Specifically, the connecting pipe 1 is provided with a detachable maintenance window 8, in actual products, the volume is large, and part of the human body can be accommodated to enter or enter as a whole, therefore the setting of the maintenance window can enter the inside to check or maintain.

[0047] The above only for the preferred embodiment of the utility model, not therefore limit the patent range of the utility model, all in the utility model of the utility model concept, utilize the utility model specification and the attached drawing contents do equivalent structure transformation, or direct / indirectly applied in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A bearing structure for a cement clinker screw conveyor, characterized in that: include, A connecting tube, wherein a conveying cavity is provided inside the connecting tube, and a plurality of adjustment plates are provided on the outer wall of the connecting tube. The adjustment plates are provided with three sets of screws that are rotatable and distributed circumferentially along the outer wall of the connecting tube. The screws can be switched between a position extending into the axis of the conveying cavity and a position away from the axis of the conveying cavity; A spiral shaft, wherein the spiral shaft has at least two sections, including a first spiral shaft and a second spiral shaft; A bearing, the bearing comprising a bearing shell and a rotating shaft disposed inside the bearing shell, an oil passage being disposed between the bearing shell and the rotating shaft, and two ends of the rotating shaft being connected to the first spiral shaft and the second spiral shaft respectively; The outer peripheral wall of the bearing bush is provided with a first nut seat matched with the screw rod. The screw rod is screwed into the first nut seat and can adjust the relative axis position of the rotating shaft.

2. The bearing structure of the cement clinker screw conveyor according to claim 1, characterized in that: The adjustment plate of the connecting pipe is provided with a second nut seat, a support rod is provided between the first nut seat and the second nut, and the support rod is provided with a through hole for the screw rod to pass through.

3. The bearing structure of the cement clinker screw conveyor according to claim 2, characterized in that: The through hole is provided with an internal thread.

4. The bearing structure of the cement clinker screw conveyor according to claim 2, characterized in that: The inner wall of the second nut seat is arc-shaped, and the outer end of the support rod is provided with a support portion, which extends outward and has an outer diameter larger than the outer diameter of the support rod. The support portion abuts against the inner wall of the conveying cavity and is provided with an arc surface.

5. The bearing structure of the cement clinker screw conveyor according to claim 2, characterized in that: A fixing bolt is further provided on the outer side of the second nut seat, and the fixing bolt is installed on the screw rod.

6. The bearing structure of the cement clinker screw conveyor according to claim 1, characterized in that: The screw rod is a hollow structure, the hollow structure is an oil delivery channel, and the first nut seat is provided with an oil hole connected to the oil channel.

7. The bearing structure of the cement clinker screw conveyor according to claim 1, characterized in that: The bearing shells are provided with two and are symmetrically arranged, wherein one bearing shell is provided with a first nut seat and the other bearing shell is provided with two nut seats. The inner wall of the bearing shell is provided with a plurality of slots arranged at intervals, and the slots are provided with sealing sleeves.

8. The bearing structure of the cement clinker screw conveyor according to claim 1, characterized in that: Both ends of the rotating shaft are provided with first coupling seats.

9. The bearing structure of the cement clinker screw conveyor according to claim 1, characterized in that: The two ends of the connecting pipe are provided with second coupling seats.

10. The bearing structure of the cement clinker screw conveyor according to claim 1, characterized in that: The connecting pipe is provided with a detachable inspection window.

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