A mine truck frame turnover shaft position degree control device and control process

Abstract

The application relates to the field of heavy truck frame assembly tooling, and particularly discloses a mine truck frame turnover shaft position degree control device and a control process, which comprises a bearing table, a plurality of pre-positioning columns and a slidingly arranged mounting seat, the two ends of the mounting seat in the length direction are both slidingly provided with wedge blocks, the inclined surfaces of the two wedge blocks are oppositely arranged, and the sliding directions of the wedge blocks are arranged along the length direction of the mounting seat; the two ends of the mounting seat in the length direction are both fixedly connected with fixed shafts, the fixed shafts are provided with bent portions, the bent portions are rotationally connected with folding rods, the folding rods are hingedly connected with abutting plates at one end and movably connected with the wedge blocks at the other end, the shortest distance between the bottom ends of the two wedge blocks is smaller than the distance between the two abutting plates; the wedge blocks are provided with supporting mechanisms for supporting the turnover shafts. The application only needs to pre-align the inclined surfaces of the two wedge blocks on the two sides of the end portion of the frame, and then lower the frame to the two abutting plates which are tightly attached to the frame, so that the mounting seat and the turnover shafts thereon can be kept perpendicular to the length direction of the frame, the calibration difficulty is low, and the installation efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heavy truck frame assembly tooling, in particular to a mining truck frame turnover shaft position degree control device and control process. BACKGROUND

[0002] The mining truck is a heavy self-unloading vehicle used in open-pit mines to complete the task of rock earthwork stripping and ore transportation. Its working characteristics are short transport distance and heavy load. It is usually loaded by large electric shovels or hydraulic shovels and travels back and forth between the mining point and the unloading point. Therefore, the frame of the mining truck is heavy, and large lifting equipment needs to be used for lifting and transferring during assembly.

[0003] The turnover bucket is one of the core components of the mining truck. When installing the turnover shaft for carrying the turnover bucket on the mining truck frame, it is necessary to ensure that the turnover shaft is installed on the frame with high precision. Usually, when the frame is machined, to avoid wear and tear on the turnover shaft, a shaft hole with a diameter slightly larger than the outer diameter of the turnover shaft is reserved on the frame. This ensures that the turnover shaft is securely fixed at the set position and maintains high precision perpendicularity with the frame and high precision coaxiality with the shaft hole on the frame during welding.

[0004] A carrying table for carrying the frame is usually provided. According to the size of the frame and the position of the shaft hole, corresponding installation tooling is set to ensure that the turnover shaft can be accurately installed in the shaft hole. However, in actual operation, it is difficult to accurately place the frame at the set position on the carrying table when lifting the frame with a crane. Therefore, the position of the frame needs to be constantly adjusted to align with the installation tooling to ensure that the turnover shaft is perpendicular to the length direction of the frame, reducing the probability of tilting the turnover bucket during later use. Obviously, it is difficult to adjust the position of the heavy mining truck frame, and it also causes wear and tear to the adjustment equipment or scratches on the frame, affecting the assembly quality of the subsequent parts to be assembled. SUMMARY

[0005] In order to realize the assembly of the turnover shaft on the truck frame with high perpendicularity, the present application provides a mining truck frame turnover shaft position degree control device and control process.

[0006] The first aspect of the present application provides a mining truck frame turnover shaft position degree control device, which adopts the following technical scheme:

[0007] The application discloses a kind of mine truck frame turnover shaft position degree control device, including bearing table, the bearing table is provided with multiple pre-positioning column for pre-positioning frame, the end of the bearing table is slidably installed with mounting seat on end surface, the mounting seat is arranged along the axial direction of the turnover shaft to be installed, the both ends of the length direction of the mounting seat are slidably provided with wedge, the inclined surface of two wedge is oppositely arranged and the sliding direction of the wedge is arranged along the length direction of the mounting seat, the side of the wedge away from the other wedge is provided with elastic reset member between the mounting seat.

[0008] The both ends of the length direction of the mounting seat are fixedly connected with fixed shaft, the fixed shaft is provided with a folding lever rotationally connected thereto, the folding lever is hingedly connected with abutment plate at one end and movably hingedly connected with the wedge at the other end, and the shortest distance between the bottom ends of the two wedges is less than the distance between the two abutment plates.

[0009] The wedge is provided with a supporting mechanism for supporting the turnover shaft.

[0010] By adopting the above technical scheme, when assembling the frame and the turnover shaft, the frame is first hoisted to the bearing table by a crane, so that the bottom ends of the two sides of the end of the frame to be installed with the turnover shaft are aligned with the two wedges, the frame is slowly lowered, the two sides of the frame are in contact with the inclined surfaces of the two wedges during the lowering process, and as the frame continues to move downward, the two sides of the frame slide on the inclined surfaces of the two wedges and push the two wedges away from each other. The elastic reset member is arranged to enable the wedge to always keep the inclined surface in close contact with the side of the frame. When the wedge slides outward on the mounting seat, the wedge drives the folding lever to turn on the fixed shaft, so that the abutment plates on the folding lever move closer to the side walls of the frame until the two abutment plates are in close contact with the two sides of the frame and the folding lever cannot continue to turn.

[0011] During this process, since the weight of the frame is much greater than the weight of the mounting seat and its attached components, and the mounting seat is slidably arranged on the bearing table, the reaction force of the abutment plates pressing against the side walls of the frame drives the folding lever to slide or rotate the mounting seat on the bearing table until the mounting seat is automatically adjusted to a state where its length direction is perpendicular to the length direction of the frame. After the turnover shaft is inserted through the shaft hole on the frame and placed on the supporting mechanism, it can be ensured that the turnover shaft is accurately in a state where its axis is perpendicular to the length direction of the frame, and after the turnover shaft is welded, it can ensure smooth turning of the bucket in use. It is not necessary to repeatedly fine-tune the frame end to be flush with the mounting seat provided with the supporting mechanism by hoisting the frame with the crane, which reduces the calibration difficulty of the frame and greatly improves the installation efficiency of the turnover shaft on the frame.

[0012] Optionally, a long slot is formed in the upper end surface of the bearing table and arranged along the length direction of the mounting seat, a sliding block is slidably arranged in the long slot, and the middle part of the length direction of the mounting seat is rotationally mounted on the sliding block.

[0013] By adopting the technical scheme, in the process of approaching each other and clamping the vehicle frame, the reaction force of the folding rod on the wedge drives the wedge to drive the mounting seat to move on the bearing table, specifically, to drive the sliding block to slide in the long slot on the bearing table, and the bearing table rotates on the sliding block, so that the position of the mounting seat can be limited to a certain extent, and the movement of the mounting seat on the bearing table is mainly ensured to move to a state perpendicular to the length direction of the vehicle frame.

[0014] Optionally, a rotating rod is vertically and fixedly connected to the sliding block, and a sleeve is fixedly connected to the mounting seat and sleeved on the rotating rod.

[0015] By adopting the technical scheme, the sleeve and the folding rod are arranged to facilitate smooth rotation of the mounting seat on the sliding block when the mounting seat is attached to the bearing table; and when the abutting plates are completely abutted against the vehicle frame, the locking mechanism locks the rotating rod, so that the mounting seat can be maintained in a state perpendicular to the length direction of the vehicle frame, and the mounting seat will not be slightly rotated when the folding rod is installed.

[0016] Optionally, the locking mechanism comprises a locking gear coaxially fixed on the rotating rod and two arc-shaped racks arranged on the two sides of the locking gear, the arc-shaped racks are matched with the locking gear, and an elastic telescopic rod is connected between the arc-shaped racks and the wedge on the inner arc side opposite to the arc-shaped racks.

[0017] By adopting the technical scheme, when the two wedges move away from each other and drive the folding rod to flip to the state that the abutting plates abut against the vehicle frame, the wedges drive the elastic telescopic rod and the arc-shaped racks thereon to move towards the locking gear on the rotating rod, until the arc-shaped racks are engaged with the locking gear, the two arc-shaped racks can stably lock the locking gear, and the flipping position of the mounting seat can be locked; even if the mounting seat has been flipped to be perpendicular to the length direction of the vehicle frame, the wedges continue to move outward, the total length of the elastic telescopic rod increases, and the arc-shaped racks can still lock the locking gear, and the phenomenon of being stuck will not occur.

[0018] Optionally, an installation cylinder is fixedly connected to the side wall of the wedge, and the elastic telescopic rod is arranged in the installation cylinder, and a locking bolt is threadedly arranged in the installation cylinder and abuts against the elastic telescopic rod.

[0019] By adopting the technical scheme, the locking bolt can be loosened, the position of the elastic telescopic rod in the installation cylinder can be changed, and the effective moving stroke of the wedge in the state that the arc-shaped rack locks the locking gear can be changed, so that the width of different vehicle frames can be adaptively adjusted to avoid the situation that the locking gear is stuck when the abutting plates are not abutted against the vehicle frame or the locking gear is not locked when the abutting plates are abutted against the vehicle frame.

[0020] Optionally, the wedge upper end surface is hinged with a guide arc rod, the outer arc sides of the two guide arc rods are oppositely arranged, and the guide arc rod is provided with a torsional elastic element on the hinge shaft of the wedge; when the two guide arc rods are turned away from each other, the torsional elastic element is twisted to produce deformation.

[0021] By adopting the above technical scheme, the frame first passes through the gap between the two guide arc rods during the downward movement, and the deformation force of the torsional elastic element after being twisted can act on the reverse force of the guide arc rod, so that the position of the mounting seat in the width direction of the bearing table can be pre-adjusted to avoid the phenomenon that the positions of the two sides of the frame and the wedge inclined surface are different, thereby affecting the subsequent position adjustment accuracy of the mounting seat. The frame is mainly driven to rotate horizontally on the bearing table during the abutting and downward movement of the frame and the two wedges, the position adjustment of the mounting seat is decomposed, and the accuracy of the position calibration of the mounting seat is improved.

[0022] Optionally, the supporting mechanism includes a supporting seat mounted on the wedge, and a supporting frame for supporting the turnover shaft is mounted on the supporting seat, and two-axis adjustment assemblies for adjusting the supporting seat in the vertical direction and along the length direction of the frame are arranged on the wedge.

[0023] By adopting the above technical scheme, after the position calibration of the mounting seat is completed, the turnover shaft passes through the shaft hole on the frame, and the two ends of the turnover shaft are arranged on the two supporting frames, and at this time the turnover shaft remains perpendicular to the length direction of the frame. Only the position of the turnover shaft in the shaft hole needs to be adjusted synchronously by the two-axis adjustment assemblies.

[0024] Optionally, the supporting frame is provided with a pressing element for pressing the turnover shaft.

[0025] By adopting the above technical scheme, after the turnover shaft is installed, the turnover shaft can be fixed by the pressing element to ensure the stability of the turnover shaft during welding.

[0026] Optionally, the one end of the folding rod close to the wedge is provided with a give-way slot, and a sliding head penetrating through the give-way slot and slidingly matched with the give-way slot is fixedly connected to the wedge.

[0027] By adopting the above technical scheme, the folding rod will not be stuck with the wedge during the turning.

[0028] The second aspect of the present application provides a mine truck frame turnover shaft position control process which adopts the following technical scheme:

[0029] A mine truck frame turnover shaft position control process based on the above-mentioned mine truck frame turnover shaft position control device, comprising the following steps:

[0030] S1. Hoist the frame, hoist the frame to be assembled above the bearing table;

[0031] S2. Frame pre-positioning, lower the frame between the plurality of pre-positioning columns on the bearing table, and adjust the position of one end of the frame to be installed at any time. The end of the frame is on both sides of the two wedge inclined surfaces;

[0032] S3. Installation seat calibration, after the frame is attached to the two wedge inclined surfaces on both sides, slowly lower the frame until the two folding rods are turned over to the two stop plates, respectively, and the frame is tightly attached to the two stop plates. At this time, the installation seat position calibration is completed, and the installation seat is locked;

[0033] S4. Turn the shaft installation, pass the turning shaft through the shaft hole on the frame, and support it through the support mechanism, and then weld the connecting part of the turning shaft and the frame.

[0034] By adopting the above technical scheme, after the frame with a large self-weight is hoisted onto the bearing table, only the end of the frame to be installed is slowly lowered to be opposite to the two wedge inclined surfaces, and then it is continuously lowered, so that the automatic perpendicularity calibration of the installation seat for bearing the turning shaft is realized. When the two stop plates are tightly attached to the frame, the installation seat can be perpendicular to the length direction of the frame, which can ensure the installation accuracy of the turning shaft, and there is no need to repeatedly fine-tune the frame end to be flush with the installation seat provided with the support mechanism through the crane, thereby reducing the calibration difficulty of the frame and greatly improving the installation efficiency of the turning shaft on the frame.

[0035] In summary, the present application has at least one of the following beneficial technical effects:

[0036] 1. After the frame with a large self-weight is hoisted onto the bearing table, only the end of the frame to be installed is slowly lowered to be opposite to the two wedge inclined surfaces, and then it is continuously lowered, so that the automatic perpendicularity calibration of the installation seat for bearing the turning shaft is realized. When the two stop plates are tightly attached to the frame, the installation seat can be perpendicular to the length direction of the frame, which can ensure the installation accuracy of the turning shaft, and there is no need to repeatedly fine-tune the frame end to be flush with the installation seat provided with the support mechanism through the crane, thereby reducing the calibration difficulty of the frame and greatly improving the installation efficiency of the turning shaft on the frame;

[0037] 2. By setting the locking gear on the rotating rod and the arc-shaped gear rack on the wedge, the wedge can drive the arc-shaped gear rack to mesh with the locking gear during the process of moving away from the two wedges and turning the folding rod to the stop plate in contact with the frame. The locking gear can be stably locked, and the turning position of the installation seat can be automatically locked, thereby ensuring the automatic locking effect after the installation seat position calibration is completed;

[0038] 3. After the guiding arc rod is arranged, the position of the mounting seat in the width direction of the bearing table can be pre-adjusted to avoid the phenomenon that the positions of the two sides of the frame and the wedge inclined surface are different, which affects the accuracy of the subsequent position adjustment of the mounting seat, so that the frame and the two wedges are in contact and the process of moving down mainly drives the mounting seat to rotate horizontally on the bearing table, decomposes the position adjustment of the mounting seat, and improves the accuracy of the position calibration of the mounting seat. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application.

[0040] Figure 2 is a schematic diagram of the partial section of the embodiment of the present application after cutting off part of the mounting seat and the end of the bearing table.

[0041] Figure 3 is an enlarged schematic diagram of part A in Figure 2

[0042] Figure 4 is an enlarged schematic diagram of part B in Figure 1

[0043] Reference signs: 1, bearing table; 11, pre-positioning column; 12, long groove; 13, sliding block; 14, rotating rod;

[0044] 2, mounting seat; 21, wedge; 211, sliding head; 22, elastic reset member; 23, fixed shaft; 24, folding rod; 241, accommodation slot; 25, abutting plate; 26, sleeve;

[0045] 31, locking gear; 32, arc-shaped gear rack; 33, elastic telescopic rod; 34, mounting cylinder; 35, locking bolt;

[0046] 41, guiding arc rod; 42, torsional elastic member;

[0047] 51, supporting seat; 52, supporting frame; 53, two-axis adjusting assembly; 54, pressing member. DETAILED DESCRIPTION

[0048] The following will be described in detail in combination with the accompanying Figures 1-4 The present application is further described in detail.

[0049] The embodiment of the present application discloses a mine truck frame turnover shaft position control device. Referring to Figure 1 , Figure 2 and Figure 3 ​​The application discloses a mine truck frame turnover shaft position degree control device which comprises a bearing table 1 for bearing a frame, a plurality of pre-positioning columns 11 for pre-positioning the frame are arranged on the bearing table 1, the pre-positioning columns 11 are vertically fixed on the bearing table 1, and an adjusting screw rod can be horizontally screwed on the pre-positioning columns 11 if necessary. An installation seat 2 is slidably installed on the upper end face of one end of the bearing table 1, the installation seat 2 is arranged along the axial direction of a turnover shaft to be installed, specifically, a long groove 12 is arranged on the upper end face of the one end of the bearing table 1 along the length direction of the installation seat 2, a sliding block 13 is slidably arranged in the long groove 12, and the middle part of the length direction of the installation seat 2 is rotatably installed on the sliding block 13.

[0050] With reference to Figure 1 and Figure 2 , the two ends of the length direction of the installation seat 2 are slidably provided with wedge blocks 21, the inclined surfaces of the two wedge blocks 21 are oppositely arranged and the sliding directions of the wedge blocks 21 are arranged along the length direction of the installation seat 2, and the side, away from the other wedge block 21, of the wedge block 21 is provided with an elastic reset member 22 between the installation seat 2; specifically, a guide rail or a guide groove is arranged on the bearing table 1 so that the wedge blocks 21 can be slid on the bearing table 1 without falling off, in the embodiment, the guide rail is selected and is optimized as a guide rod penetrating through the wedge blocks 21, so that the elastic reset member 22 can be set as a spring sleeved on the guide rod.

[0051] In addition, with reference to Figure 1 and Figure 4 , the two ends of the length direction of the installation seat 2 are fixedly provided with fixed shafts 23, the fixed shafts 23 are provided with folding rods 24 rotatably connected thereto, the folding rods 24 are hingedly provided with abutting plates 25 at one end and are movably hingedly connected with the wedge blocks 21 at the other end, the hinge axes of the folding rods 24 are all perpendicular to the bearing table 1, the shortest distance between the bottom ends of the two wedge blocks 21 is smaller than the distance between the two abutting plates 25, and a supporting mechanism for supporting the turnover shaft is arranged on the wedge block 21. Moreover, considering that the movable stroke of the wedge block 21 is limited, in order to facilitate the abutting plates 25 to effectively abut against the frame, the length of the folded section of the one end of the folding rod 24 close to the wedge block 21 is smaller than the length of the folded section of the other end of the folding rod 24 close to the abutting plate 25. Meanwhile, in order to prevent the folding rod 24 from being stuck when being turned over, a giving slot 241 is arranged on the one end of the folding rod 24 close to the wedge block 21, and a sliding head 211 penetrating through the giving slot 241 and slidably matched with the giving slot 241 is fixedly arranged on the wedge block 21.

[0052] In this way, when assembling the frame and the turnover shaft, the frame is first hoisted to the bearing table 1 by the crane, so that the two bottom ends of the frame at the end to be installed with the turnover shaft are aligned with the inclined surfaces of the two wedge blocks 21, the frame is slowly lowered, and the two sides of the frame are in contact with the inclined surfaces of the two wedge blocks 21 during the lowering process, and the two wedge blocks 21 are pushed away from each other. The elastic reset member 22 is arranged to enable the wedge block 21 to always maintain the inclined surface in contact with the side of the frame. When the wedge block 21 slides outward on the mounting seat 2, the wedge block 21 drives the folding rod 24 to turn on the fixed shaft 23, so that the abutting plate 25 on the folding rod 24 approaches the side wall of the frame, and the two abutting plates 25 abut against each other on the two sides of the frame, and the folding rod 24 cannot continue to turn.

[0053] During this process, since the self-weight of the frame is much greater than the self-weight of the mounting seat 2 and the attached components thereon, and the mounting seat 2 is slidably arranged on the bearing table 1, the reaction force of the abutting plate 25 when abutting against the side wall of the frame drives the folding rod 24 to slide or rotate the mounting seat 2 on the bearing table 1, until the mounting seat 2 is automatically adjusted to a state in which the length direction is perpendicular to the length direction of the frame. In this way, after the turnover shaft is passed through the shaft hole on the frame and arranged on the supporting mechanism, it can be ensured that the turnover shaft is accurately in a state in which the axis is perpendicular to the length direction of the frame, and after the turnover shaft is welded, it can ensure that the turnover shaft can smoothly turn the bucket in use. It is not necessary to hoist the frame by the crane to repeatedly fine-tune the frame end to be flush with the mounting seat 2 provided with the supporting mechanism, which reduces the calibration difficulty of the frame and greatly improves the installation efficiency of the turnover shaft on the frame.

[0054] It is considered that when the frame is lowered, if the inclination of the frame is large, it may be difficult to align the two sides of the frame with the inclined surfaces of the two wedge blocks 21, or the alignment may be difficult, which may still require precise adjustment of the position of the frame by the crane, increase the operation difficulty, and affect the assembly efficiency of the turnover shaft of the frame. Referring to Figure 2 and Figure 4 , the embodiment of the application is further provided with a guide arc rod 41 hinged to the upper end surface of the wedge block 21, the outer arc sides of the two guide arc rods 41 are oppositely arranged, a torsional elastic member 42 is arranged on the hinge shaft of the guide arc rod 41 and the wedge block 21, the torsional elastic member 42 is a torsional spring, and the hinge shaft of the guide arc rod 41 and the wedge block 21 is arranged along the length direction of the frame. When the two guide arc rods 41 are turned away from each other, the torsional elastic member 42 is twisted to deform.

[0055] In this way, the frame first passes through the gap between the two guide arc rods 41 during the downward movement, and the pre-adjustment of the position of the mounting seat 2 in the width direction of the bearing table 1 can be performed by the reverse force of the deformation force of the torsion elastic element 42 after being twisted, so as to avoid the phenomenon that the positions of the two sides of the frame and the inclined surfaces of the wedge blocks 21 are different, thereby affecting the subsequent position adjustment accuracy of the mounting seat 2, and the frame and the two wedge blocks 21 are mainly driven to rotate horizontally on the bearing table 1 during the abutting and downward movement of the frame and the two wedge blocks 21, so as to decompose the position adjustment of the mounting seat 2 and improve the accuracy of the position calibration of the mounting seat 2. In addition, the two sides of the frame and the inclined surfaces of the two wedge blocks 21 do not need to be aligned during the downward movement of the frame, and the convenience and fault tolerance of the position calibration of the mounting seat 2 are further improved.

[0056] After the position calibration of the mounting seat 2 is completed, the end of the frame to be installed on the turnover shaft may still abut against the inclined surfaces of the two wedge blocks 21 or may abut against the mounting seat 2, but the self-weight of the frame is also applied to the mounting seat 2, so that the mounting seat 2 is less likely to slide in the long groove 12 of the bearing table 1 through the sliding block 13. However, since the two ends of the folding rod 24 are hingedly connected to the abutting plate 25 and the wedge block 21 respectively, accidental collision may cause the mounting seat 2 to rotate relative to the bearing table 1 during the assembly of the turnover shaft, especially when the head end of the frame completely abuts against the mounting seat 2, which will inevitably affect the perpendicularity between the length direction of the mounting seat 2 and the length direction of the frame, and even slight angular deflection will cause the bucket on the installed turnover shaft to be unstable in the center of gravity during the turnover.

[0057] Therefore, with reference to Figure 2 and Figure 3 a rotating rod 14 is vertically fixed on the sliding block 13, a sleeve 26 is fixed on the mounting seat 2 and sleeved on the rotating rod 14, the sleeve 26 is located on the center line of the mounting seat 2, and a locking mechanism for locking the rotating rod 14 when the folding rod 24 is turned to abut against the frame is arranged on the mounting seat 2; specifically, the locking mechanism comprises a locking gear 31 coaxially fixed on the rotating rod 14 and two arc-shaped racks 32 arranged on the two sides of the locking gear 31, the arc-shaped racks 32 are matched and engaged with the locking gear 31, the two arc-shaped racks 32 are arranged in sequence in the axial direction of the rotating rod 14, and the elastic expansion rods 33 are connected between the arc-shaped racks 32 and the wedge blocks 21 opposite to the inner arc sides of the arc-shaped racks 32. The elastic expansion rods 33 are conventional elastic rods with built-in tension springs and can realize the reset function after stretching.

[0058] In this way, when the two wedges 21 move away and drive the folding rod 24 to overturn to the position where the abutting plates 25 abut against the frame, the wedges 21 drive the elastic telescopic rods 33 and the arc-shaped racks 32 thereon to move close to the locking gear 31 on the rotating rod 14, until the arc-shaped racks 32 mesh with the locking gear 31, and the two arc-shaped racks 32 can stably lock the locking gear 31, that is, lock the overturning position of the mounting seat 2, so that the phenomenon that the mounting seat 2 overturns after the position calibration is completed due to external force can be effectively avoided, and the installation accuracy of the overturning shaft is further ensured.

[0059] In addition, in order to further expand the range of frame sizes that can be adapted by the present application, referring to Figure 2 and Figure 3 , the mounting cylinder 34 is fixed to the side wall of the wedge 21, the elastic telescopic rod 33 is arranged in the mounting cylinder 34, and the locking bolt 35 abutting against the elastic telescopic rod 33 is threadedly arranged on the mounting cylinder 34. In this way, by changing the position of the elastic telescopic rod 33 in the mounting cylinder 34, the effective moving stroke of the wedge 21 in the state of locking the locking gear 31 by the arc-shaped rack 32 is changed.

[0060] Meanwhile, referring to Figure 1 and Figure 2 , the aforementioned supporting mechanism includes the supporting seat 51 mounted on the wedge 21, the supporting frame 52 for supporting the overturning shaft is mounted on the supporting seat 51, the gap for embedding the overturning shaft is formed on the upper end surface of the supporting frame 52, the two-axis adjusting assembly 53 for adjusting the supporting seat 51 in the vertical direction and along the length direction of the frame is arranged on the wedge 21, and the two-axis adjusting assembly 53 is the adjusting structure commonly used in the mechanical field, which is the cooperation of the lead screw and the guide rod. If necessary, the pressing member 54 for pressing the overturning shaft can also be arranged on the supporting frame 52, the pressing member 54 is arranged in the U shape and cooperates with the gap on the supporting frame 52 in the inverted buckle mode, and the pressing member 54 and the supporting frame 52 are bolted and linked, so that the overturning shaft can be locked on the supporting frame 52.

[0061] The implementation principle of the position degree control device for the frame overturning shaft of the mining truck according to the embodiment of the present application is as follows: after the frame with large self weight is hoisted to the bearing table 1, only by slowly moving down to make one end of the frame to be installed with the overturning shaft opposite to the two wedge inclined surfaces, and then continuing to move down, the automatic perpendicularity calibration of the mounting seat 2 for bearing the overturning shaft can be realized, so that when the two abutting plates 25 abut against the frame, the mounting seat 2 can keep perpendicular to the length direction of the frame, the installation accuracy of the overturning shaft can be ensured, and the calibration difficulty of the frame is reduced, and the installation efficiency of the overturning shaft on the frame is greatly improved.

[0062] Meanwhile, in the process of moving away from each other, the wedge 21 drives the arc-shaped rack 32 to move close to the locking gear 31 on the rotating shaft 14, until the arc-shaped rack 32 meshes with the locking gear 31, and the two arc-shaped racks 32 can stably lock the locking gear 31, that is, lock the overturning position of the mounting seat 2, which can effectively avoid the phenomenon that the mounting seat 2 is overturned after the position calibration is completed due to external force, and further ensure the installation accuracy of the overturning shaft.

[0063] The embodiment of the present application also discloses a mining truck frame overturning shaft position degree control process based on the mining truck frame overturning shaft position degree control device.

[0064] S1. Hoist the frame, and hoist the frame to be assembled to above the bearing table 1;

[0065] S2. Frame pre-positioning, lower the frame to the bearing table 1 between a plurality of pre-positioning columns 11, and adjust the position of one end of the frame to be installed overturning shaft at any time, so that the two sides of the end of the frame are opposite to the inclined surfaces of the two wedges 21;

[0066] S3. Mounting seat 2 calibration, after the two sides of the frame are respectively attached to the inclined surfaces of the two wedges 21, slowly lower the frame, until the two folding rods 24 are overturned to make the two abutting plates 25 abut against the two sides of the frame, at this time, the position calibration of the mounting seat 2 is completed, and the mounting seat 2 is locked;

[0067] S4. Overturning shaft installation, pass the overturning shaft through the shaft hole on the frame, support the overturning shaft through the supporting mechanism, and then weld the connecting part of the overturning shaft and the frame.

[0068] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A device for controlling the tilting axle position of a mining truck frame, comprising a support platform (1), wherein the support platform (1) is provided with a plurality of pre-positioning columns (11) for pre-positioning the frame, characterized in that: A mounting base (2) is slidably mounted on the upper end face of one end of the support platform (1). The mounting base (2) is arranged along the axial direction of the rotating shaft to be installed. Wedges (21) are slidably arranged at both ends of the mounting base (2) in the length direction. The inclined surfaces of the two wedges (21) are arranged opposite each other and the sliding direction of the wedges (21) is arranged along the length direction of the mounting base (2). An elastic reset member (22) is arranged between the side of the wedge (21) away from the other wedge (21) and the mounting base (2). Both ends of the mounting base (2) along its length are fixed to a fixed shaft (23). A folding rod (24) is provided on the fixed shaft (23) and rotatably connected thereto. One end of the folding rod (24) is hinged to a stop plate (25), and the other end is movably hinged to the wedge (21). The shortest distance between the bottom ends of the two wedges (21) is less than the distance between the two stop plates (25). The wedge (21) is provided with a support mechanism for supporting the flipping shaft; The upper end face of the support platform (1) is provided with a long groove (12) arranged along the length direction of the mounting base (2), and a slider (13) is slidably arranged in the long groove (12). The middle part of the mounting base (2) is rotatably mounted on the slider (13) along the length direction. A rotating rod (14) is vertically fixed to the slider (13), and a sleeve (26) sleeved on the rotating rod (14) is fixed to the mounting base (2). The mounting base (2) is provided with a locking mechanism for locking the rotating rod (14) when the folding rod (24) is flipped to the point where the abutment plate (25) abuts against the frame. The locking mechanism includes a locking gear (31) coaxially fixed to the rotating rod (14) and two arc-shaped racks (32) arranged on both sides of the locking gear (31). The arc-shaped racks (32) mesh with the locking gear (31), and an elastic telescopic rod (33) is connected between the arc-shaped racks (32) and the wedge block (21) opposite to the inner arc side. The wedge (21) is fixed to the side wall with an installation cylinder (34), the elastic telescopic rod (33) is inserted in the installation cylinder (34), and a locking bolt (35) that abuts against the elastic telescopic rod (33) is threaded on the installation cylinder (34).

2. The mine truck frame tilting axle position control device according to claim 1, characterized in that: The upper end face of the wedge (21) is hinged with a guide arc rod (41), and the outer arc sides of the two guide arc rods (41) are arranged opposite each other. A torsional elastic element (42) is provided on the hinge axis between the guide arc rod (41) and the wedge (21). When the two guide arc rods (41) are reversed and rotated away from each other, the torsional elastic element (42) is torsion and deformed.

3. The mine truck frame tilting axle position control device according to claim 1, characterized in that: The support mechanism includes a support seat (51) mounted on a wedge (21), a support bracket (52) for supporting the tilting shaft is mounted on the support seat (51), and a two-axis adjustment assembly (53) is provided on the wedge (21) for adjusting the support seat (51) in the vertical direction and along the length of the frame.

4. The mine truck frame tilting axle position control device according to claim 3, characterized in that: The support frame (52) is provided with a clamping element (54) for pressing the flipping shaft.

5. The mine truck frame tilting axle position control device according to claim 1, characterized in that: The folding rod (24) has a relief groove (241) at one end near the wedge (21), and a slide head (211) is fixed on the wedge (21) through the relief groove (241) and slidably adapted to the relief groove (241).

6. A process for controlling the position of a tilting axle of a mining truck frame, based on a tilting axle position control device for a mining truck frame as described in any one of claims 1-5, characterized in that: Includes the following steps: S1. Lift the frame and hoist the frame to be assembled onto the support platform (1); S2. Pre-positioning of the frame: lower the frame between multiple pre-positioning columns (11) on the support platform (1), and adjust the position of one end of the frame to be installed with the flipping shaft at any time so that the two sides of the frame end are directly opposite the inclined surfaces of the two wedges (21); S3. Mounting seat (2) calibration: After the two sides of the frame are respectively attached to the inclined surfaces of the two wedges (21), the frame is slowly lowered until the two folding rods (24) are flipped so that the two abutments (25) are respectively pressed against the two sides of the frame. At this time, the position calibration of the mounting seat (2) is completed, and the mounting seat (2) is locked. S4. Installation of the flip shaft: Pass the flip shaft through the shaft hole on the frame and support it through the support mechanism, and then weld the connecting parts between the flip shaft and the frame.

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