CN211892968U - Carriage of dump truck - Google Patents

Abstract

The utility model relates to a carriage of a dump truck, which comprises a carriage main body, a carriage back door, a suspension device and a locking device; the suspension device is fixedly supported on a side plate of the carriage main body and is used for connecting the carriage main body with a carriage back door; the locking device is fixedly supported at the bottom of the carriage main body and used for locking a rear door of the carriage; the suspension device includes: a support member, a connector and a rear door connector; the support member includes a support arm and a connecting arm; the connecting arm is fixed on one side of the supporting arm and is arranged adjacent to one end of the supporting arm; the two opposite ends of the connecting piece are respectively hinged with the connecting arm and the rear door connecting piece; the connector may bear against the support arm and the rear door connector may bear against an end of the support arm remote from the connecting arm. The utility model discloses a connection stability of tipper carriage back door is high, and rotation support simple structure and easy dismounting rotate the drawback that the vertical height between coupler seat and ground or other devices was low excessively when can avoiding the carriage to unload.

Description

Carriage of dump truck

Technical Field

The utility model relates to a tipper field especially relates to a tipper carriage.

Background

With the development of technology, the dump truck industry has entered an accelerated growth phase. The engineering machinery equipment industry taking the dump truck as the gravity center becomes one of the prop industries for national economic development in China.

The existing dumper carriage mainly discharges materials in a backward tilting mode. When the back-tipping type dump truck unloads, the carriage is generally lifted by the lifting device and is backwards tipped, and because the back door is hinged with the carriage through the tipping device, when the carriage is tipped, the back door is slowly opened at a certain angle, and then goods are unloaded. But the turning device who uses at present, structural design is unreasonable, and is not enough with the joint strength in carriage, and life is obvious lower, the problem that the back door dropped frequently appears. In addition, because current turning device's structural constraint, need set up the anti-bouncing device that restraines the carriage back door and beat on the carriage, but this kind of anti-bouncing device uses the reliability low at present, and in the abominable occasion of operating mode, this anti-bouncing device uses to be broken and inefficacy very easily after a period of time, and then leads to the frequent atress of turning device of back door, leads to turning device round pin axle department to be very easily worn and torn, or directly leads to the welding seam of fixed back door turning device to open and weld, carriage back door and turning device wholly drop when unloading.

When the back-tipping type dump truck unloads, the carriage is generally lifted by the lifting device and is backwards tipped. To achieve backward tilting type unloading of the dump truck body, a rotary support needs to be provided at a position near the rear end of the dump truck body bottom. Because the connecting shaft on the bearing frame is directly welded at the rear end of the bearing frame, and the position of the bearing seat of the existing rotary support for installing the bearing is closed, the rotary support needs to be installed on the connecting shaft firstly, and then the bearing seat is directly welded at the bottom of a carriage. The mounting mode causes that the supporting seat and the carriage can not be disassembled after being welded, so that the carriage can not be disassembled from the supporting frame. When the dump truck is in use, the carriage is continuously impacted and collided by goods, and particularly after-sale problems of carriage deformation, welding and cracking and the like often occur to the mining truck. When the carriage needs to be maintained, the existing rotary support limits the disassembly of the carriage, the carriage needs to be disassembled after the support seat and the carriage are cut, the subsequent use, maintenance and repair of a customer are inconvenient, and the carriage is high in workload and easy to damage.

Since the dump truck can be suitable for operation in various places such as open coal mines, steel mills, bulk cargo terminals and the like, the dump truck is often required to be matched with other conveying devices (such as a spreader) for use. Because the rotating point of the locking device of the rear door of the carriage of the existing dumper is generally arranged at the rear end of the rear cross beam, namely the locking seat is welded on the rear cross beam and protrudes out of the rear end of the carriage. Therefore, the locking seat is lower than the ground, the locking seat is easy to interfere with the conveying device in the unloading process, and the conveying device is even damaged, so that the folding machine is not suitable for being folded.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned problem, provide a tipper carriage.

In order to realize the above purpose of the utility model, the utility model provides a carriage of dump truck, include: the device comprises a carriage main body, a carriage back door, a suspension device and a locking device;

the suspension device is fixedly supported on a side plate of the carriage main body and is used for connecting the carriage main body and the carriage back door;

the locking device is fixedly supported at the bottom of the carriage main body and used for locking the carriage back door;

the suspension device includes: a support member, a connector and a rear door connector;

the support member includes a support arm and a connecting arm;

the connecting arm is fixed on one side of the supporting arm and is arranged adjacent to one end of the supporting arm;

the two opposite ends of the connecting piece are respectively hinged with the connecting arm and the rear door connecting piece;

the connector may bear against the support arm and the rear door connector may bear against an end of the support arm remote from the connecting arm.

According to one aspect of the present invention, a clamping member is disposed on a side of the connecting member adjacent to the supporting arm;

the clamping piece is provided with a clamping groove which is mutually clamped with the supporting arm.

According to an aspect of the invention, the thickness of the support arm is constant or gradually increasing in a direction away from the connecting piece.

According to one aspect of the present invention, a limiting support member for engaging with the engaging groove is provided at one side or opposite sides of the support arm in a thickness direction of the support arm;

the limiting support is a straight prism or a wedge.

According to one aspect of the present invention, a limiting groove is formed at an end of the supporting arm away from the connecting arm;

and a limiting block matched with the limiting groove is arranged on one side of the rear door connecting piece adjacent to the supporting arm.

According to one aspect of the present invention, a tangent plane is provided on a cylindrical surface of one end of an articulated shaft for the connection member to be articulated with the rear door connection member;

the articulated shaft is arranged one end of the cutting plane is connected with the connecting piece, and a shaft limiting block matched with the cutting plane is arranged at the connecting position.

According to an aspect of the present invention, the locking device includes: the locking hook comprises a locking hook, a locking hook seat, a locking hook connecting seat and a chain, wherein the locking hook seat is used for supporting the locking hook;

the latch hook includes: the device comprises a lock hook connecting arm, a pressing arm arranged at one end of the lock hook connecting arm and a connecting lug arranged on the lock hook connecting arm;

one end, far away from the pressure arm, of the lock hook connecting arm is provided with a first mounting position hinged with the lock hook seat;

and a second mounting position connected with one end of the chain is arranged on the connecting lug.

According to one aspect of the present invention, one end of the pressing arm is fixedly connected to the latch hook connecting arm, and the other end thereof is a free end and freely extends in a direction inclined with respect to the latch hook connecting arm;

the free end of the pressure arm and the connecting lug are positioned on the same side of the lock hook connecting arm;

the pressing surface on the pressing arm is an arc surface.

According to the utility model discloses an aspect, latch hook connecting seat includes: the support comprises a first support, a connecting rod connected with the first support in a sliding mode, and an elastic piece used for providing elastic force for the connecting rod;

the connecting rod is connected with the chain.

According to an aspect of the present invention, the first support member includes: the edge of the supporting plate is provided with a limit side plate in a surrounding manner;

the bearing plate is provided with a through hole for the connecting rod to pass through;

one end of the connecting rod connected with the chain is positioned in a cavity enclosed by the limiting side plate and the supporting plate.

According to an aspect of the utility model, the one end of elastic component with first support piece is kept away from one side counterbalance of spacing curb plate is leaned on, the connecting rod passes the elastic component and with the other end counterbalance of elastic component leans on.

According to an aspect of the utility model, still include: the bearing frame is used for connecting the carriage main body and a rotary support of the bearing frame;

the rotational support includes: the bearing is detachably connected with the rotating supporting seat;

an opening is formed in the side wall of the bearing mounting hole, and a limiting part protruding outwards in the radial direction is arranged on the outer side face of the bearing;

the limiting part is positioned in the opening.

According to an aspect of the invention, the width of the opening is larger than the inner diameter of the bearing, and the width of the opening is smaller than the outer diameter of the bearing;

the limiting part is a plate-shaped body arranged along the circumferential direction of the bearing.

According to an aspect of the utility model, still include: and the bearing covers are respectively arranged on two opposite sides of the rotating supporting seat along the axial direction of the bearing mounting hole.

According to one aspect of the present invention, the rotary support base of the rotary support and the carriage main body are fixedly connected to each other, and a bearing in the rotary support is sleeved on a connecting shaft at the rear end of the support frame;

the connecting shaft and the bearing frame are fixedly connected with each other.

According to one aspect of the present invention, the locking hook seat of the locking device is fixedly connected to the cross beam at the bottom of the carriage body, and the connecting seat of the locking device is fixedly connected to the bearing frame;

the beam is connected with the position of the lock hook seat and is provided with an avoiding groove.

According to one aspect of the utility model, the lower end beam of the carriage back door is provided with a holding groove for holding the pressing arm of the locking device;

the pressing surface of the pressing arm can abut against the bottom surface of the accommodating groove.

According to the utility model discloses a scheme, through setting up the supporting piece into interconnect's two parts, wherein the linking arm is used for the connection of other parts, and the supporting arm is used for holding of other parts to lean on, and the length of supporting arm is longer like this, when welding connection such as with its and carriage again, its welding length is longer, has effectively guaranteed the stable connection with carriage etc. especially to when the comparatively abominable place of operational environment, makes through longer supporting arm the utility model discloses a linkage can not take place to drop with the carriage, and is favorable to guaranteeing the stable connection of carriage back door.

According to the utility model discloses a scheme has the joint spare of draw-in groove through the setting, can be so that the connecting piece is connected with the cooperation of supporting arm. Especially, the clamping groove matched with the supporting arm is formed in the clamping piece, so that when the clamping piece is clamped on the supporting arm through the clamping groove, the side walls on two opposite sides of the clamping groove form a stable limiting effect on the connecting piece, and the connecting piece is prevented from swinging. In addition, when this aspect and carriage back door be connected the back, under the state of joint spare and support arm looks joint, the utility model discloses a supporting piece, connecting piece, carriage back door can play stable pull rod effect, and it is favorable to inhibiting the deformation of the bloated railway carriage or compartment of carriage rear end like this, have guaranteed the stability of carriage structure.

According to the utility model discloses a scheme is through setting up the spacing groove into V type groove, can make the opening in V type groove big like this, makes things convenient for the entering of stopper like this, and along with the support face that leans on the stopper of the entering of stopper then is close to with the last lateral wall of spacing groove gradually, supports until each other and leans on, realizes the rigidity of stopper. Through the mutual supporting effect of setting up spacing groove and stopper, can be effectual when guaranteeing the carriage back door under the closed condition, back door connecting piece is stabilized spacing in vertical direction, and then avoids seeing it and produces the ascending vibration of vertical direction, and it is favourable to guaranteeing the stable closing of carriage back door.

According to the utility model discloses a scheme is through setting up tangent plane and axle stopper on the articulated shaft, can carry on spacingly to the articulated shaft like this, prevents the rotation of articulated shaft, and then can guarantee the articulated shaft at hookup location's stability, has avoided it to take place to rotate the wearing and tearing that lead to, and then can avoid the articulated shaft to take place the axial float.

According to the utility model discloses a scheme sets up spacing portion on the lateral surface of bearing, can effectually play the effect along mounting hole axial dismouting bearing for the dismouting of bearing is more convenient. Especially will the utility model discloses a when the bearing is installed epaxially, this spacing portion is more outstanding to the dismouting convenience of bearing. In addition, still can effectively restrain the relative rotation between bearing and the rotation bearing seat through set up spacing portion in the outside of bearing, favorable to the wearing and tearing of the lateral surface of avoiding the bearing and mounting hole inner wall like this, thereby make the utility model discloses a life is longer, and the maintenance cost is lower.

According to the utility model discloses a scheme, open-ended width is greater than the diameter of bearing, and the open-ended width is less than the external diameter of bearing. Can make the utility model discloses a rotation bearing passes through the opening and installs in the off-axial side, and the rethread is installed the bearing between axle and rotation bearing. Like this when dismantling the rotation bearing, also can directly pull down the bearing, can follow the radial of axle and will rotate the bearing and directly pull down, make the utility model discloses a dismouting process is more simple and convenient. Simultaneously, open-ended opening width has been guaranteed like this that the rotation bearing can not break away from in the radial production of bearing to be less than the external diameter of bearing, has guaranteed the utility model discloses at the stability of rotation process.

According to the utility model discloses a scheme, with the length setting of latch hook linking arm in above-mentioned within range, thereby make the utility model discloses a latch hook linking arm of latch hook is to the direction extension of keeping away from the pressure arm, when making the installation in the carriage main part like this, can set up the position of latch hook seat to the direction of keeping away from the carriage rear end, and then perpendicular height between latch hook seat and ground or other devices is low excessively when can effectively avoiding the carriage to unload, and takes place the drawback of interfering the collision, makes this adoption the utility model discloses an inclination in tipper carriage is bigger, unloads more fast high-efficient. Meanwhile, the service life of the locking device is effectively ensured.

According to the utility model discloses a scheme is with the engaging lug with press the arm setting in the same one side of latch hook linking arm, makes the engaging lug further keep away from ground like this, makes the spatial distance of latch hook below bigger, the influence when having avoided structure on the latch hook to unload the carriage.

According to the utility model discloses a scheme for the face between pressure arm and the carriage back door is supported and is leaned on the contact, has become the line and has supported and lean on the contact, and the stability of homoenergetic assurance latch hook and carriage back door is supported and is leaned on profitably under the different scene of using to the tipper carriage like this, guarantees the tight of carriage back door. In addition, the pressing arm and the carriage back door are in line contact, and the rapid separation of the latch hook and the carriage back door is facilitated during unloading, so that the rapid unloading of the dumper is guaranteed.

According to the utility model discloses a scheme is through the latch hook linking arm with the latch hook to the direction extension of keeping away from the pressure arm for the mounted position antedisplacement of latch hook seat on the crossbeam (keeping away from the direction of carriage rear end promptly), and then has avoided the influence of latch hook seat when unloading to the carriage, makes the utility model discloses a carriage is bigger at the inclination of the in-process of unloading, unloads more fast abundant. In addition, the latch hook linking arm of latch hook is prolonged to the direction of keeping away from the pressure arm. Also make the focus of whole latch hook further keep away from the articulated position of latch hook linking arm with the latch hook seat like this, and then when the carriage was unloaded, the latch hook was changeed under the action of gravity and is broken away from, had guaranteed opening in time of carriage back door, makeed the utility model discloses a process of unloading is more high efficiency.

Drawings

Fig. 1 schematically shows a schematic view at a suspension mechanism of a dump truck carriage according to an embodiment of the invention;

FIG. 2 schematically illustrates a block diagram of a rotational support according to one embodiment of the present invention;

figure 3 schematically shows a block diagram of a rotary bearing block according to an embodiment of the invention;

fig. 4 schematically shows a block diagram of a bearing according to an embodiment of the invention;

FIG. 5 schematically illustrates a schematic view of a rotational support of a dump truck bed in accordance with an embodiment of the present invention;

fig. 6 schematically shows a schematic view at the locking device of a dump truck carriage according to an embodiment of the invention;

fig. 7 schematically shows a partially enlarged view of the area a in fig. 6.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In describing embodiments of the present invention, the terms "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is not limited to the following embodiments.

With reference to fig. 1, 5 and 6, the self-discharging car body of the present invention includes a car body 1, a car back door 2, a suspension device 3, a locking device 4, a support frame 5 and a rotation support 6. As shown in fig. 1, according to the utility model discloses an embodiment, the utility model discloses a linkage for tipper back door, include: a support member 31, a connecting member 32, and a rear door connecting member 33. In the present embodiment, the support 31 includes a support arm 311 and a connection arm 312. The connecting arm 312 is fixed to one side of the supporting arm 311, and the connecting arm 312 is disposed adjacent to one end of the supporting arm 311. In the present embodiment, the support arm 311 and the connection arm 312 are connected to each other perpendicularly to form an L-shaped structure. In the present embodiment, opposite ends of the link 32 are hinged to the link arm 312 and the rear door link 33, respectively. In the present embodiment, the connecting member 32 may bear against the support arm 311, and the rear door connecting member 33 may bear against an end of the support arm 311 remote from the connecting arm 312. Through setting up supporting piece 31 into interconnect's two parts, wherein the linking arm is used for the connection of other parts, and the supporting arm is used for bearing of other parts to lean on, and the length of supporting arm is longer like this, when welding connection such as with its and carriage again, its welding length is longer, has effectively guaranteed the stable connection with carriage etc. especially to local such as the comparatively abominable mine of operational environment, makes through longer supporting arm the utility model discloses a linkage can not take place to drop with the carriage, and is favorable to guaranteeing the stable connection of carriage back door.

As shown in fig. 1, according to an embodiment of the present invention, a clamping member 321 is disposed at a side of the connecting member 32 adjacent to the supporting arm 311. In the present embodiment, the clip 321 is provided with a clip groove 3211 which is clipped to the support arm 311. In this embodiment, the engaging groove 3211 of the engaging member 321 is adapted to the width of the supporting arm 311, when the connecting member 32 is supported on the supporting arm 311, the engaging member 321 is engaged with the supporting arm 311 through the engaging groove 3211 formed on the engaging member 321, and two opposite sidewalls of the engaging groove 3211 are respectively located on two sides of the supporting arm 311 in the thickness direction. Through the setting joint spare that has the draw-in groove, can be so that the connecting piece is connected with the cooperation of supporting arm. Especially, the clamping groove matched with the supporting arm is formed in the clamping piece, so that when the clamping piece is clamped on the supporting arm through the clamping groove, the side walls on two opposite sides of the clamping groove form a stable limiting effect on the connecting piece, and the connecting piece is prevented from swinging. In addition, when this aspect and carriage back door be connected the back, under the state of joint spare and support arm looks joint, the utility model discloses a supporting piece, connecting piece, carriage back door can play stable pull rod effect, and it is favorable to inhibiting the deformation of the bloated railway carriage or compartment of carriage rear end like this, have guaranteed the stability of carriage structure.

As shown in fig. 1, according to an embodiment of the present invention, the thickness of the supporting arm 311 is constant or gradually increased in a direction away from the connecting member 32. In the present embodiment, the thickness of the support arm 311 is constant, that is, it is a plate-shaped body having a uniform thickness, and by setting the thickness to be uniform, the processing thereof is convenient and the material cost is low. Certainly also can set up the thickness of supporting arm 311 as changeable, along the direction thickness crescent along keeping away from connecting piece 32 promptly, it is little that it is close to one side thickness of connecting piece 32 like this, and the one side thickness of keeping away from connecting piece 32 is big, and draw-in groove 3211 on the joint spare 321 is gone into the in-process of supporting arm 311 at the card like this, along with the crescent of supporting arm 311 thickness, can make draw-in groove 3211 convenient when going into the position, and the chucking when targetting in place has effectively guaranteed the utility model discloses a stability in use has reduced the possibility of breaking down.

As shown in fig. 1, according to an embodiment of the present invention, a limit support 3111 for engaging with the engaging groove 3211 is provided at one side or opposite sides of the support arm 311 in a thickness direction of the support arm 311. In this embodiment, the stopper support 3111 is a right prism or a wedge. In this embodiment, the thickness of the support arm 311 can be better matched with the slot 3211 of the clip 321 by providing the limiting support 3111, so that the limiting effect on the connecting member 32 is better. In addition, through setting up spacing supporting part 3111, can control the thickness of supporting arm 311 in a flexible way for spacing supporting part 3111 when playing with draw-in groove 3211 matched with, still played the strengthening rib effect to supporting arm 311, make the utility model discloses a manufacturing process of supporting part is simple and with low costs. When setting up spacing supporting part 3111 to the wedge, the less one end of its thickness is in the upper end other end and is in the lower extreme, is connected the in-process at joint spare 321 and supporting arm 311 like this, plays the effect that thickness increases gradually for the income position of joint spare 321 is easier, and the beneficial effect of the chucking that targets in place. In the present embodiment, the stopper support 3111 may be provided on one side of the support arm 311, or may be provided on both sides of the support arm 311. Further, one or a plurality of stopper support members 3111 may be provided on one side of the support arm 311.

As shown in fig. 1, according to an embodiment of the present invention, an end of the supporting arm 311 away from the connecting arm 312 is provided with a limiting groove 3112. In this embodiment, a stopper 331 engaged with the stopper groove 3112 is provided at a side of the rear door connector 33 adjacent to the support arm 311. In this embodiment, the stopper groove 3112 is a V-shaped stopper groove. The upper side of the stop block 331 is provided with an inclined abutting surface with the side wall of the stop groove 3112, and when the stop block 331 is located in the stop groove 3112 (i.e. in a door closing state), the abutting surface on the upper side of the stop block 331 abuts against the upper side surface of the stop groove 3112. Through setting up spacing groove 3112 into V type groove, can make the opening in V type groove big like this, make things convenient for stopper 331's entering like this, and along with the face of supporting on stopper 331's the entering stopper then is close to with the last lateral wall in spacing groove gradually, support each other until, realize stopper 331's rigidity. Through the mutual supporting action of the limiting groove and the limiting block, the rear door connecting piece 33 can be effectively guaranteed to be stably limited in the vertical direction when the carriage rear door is in a closed state, so that the situation that the rear door generates vibration in the vertical direction is avoided, the stable closing of the carriage rear door is guaranteed to be favorable, and the stable connection of the supporting arm and the carriage is guaranteed to be favorable.

As shown in fig. 1, according to an embodiment of the present invention, a tangential plane 341 is provided on a cylindrical surface of one end of a hinge shaft 34 for connecting the connector 32 to the back door connector 33. In this embodiment, one end of the hinge shaft 34 where the tangent plane 341 is provided is connected to the connector 32, and a shaft stopper 3411 matched with the tangent plane 341 is provided at the connection position. In this embodiment, the shaft stopper 3411 is a rectangular block, which can be fixedly connected to the connecting member 32. Through set up tangent plane 341 and axle stopper 3411 on articulated shaft 34, can carry on spacingly to articulated shaft 34 like this, prevent articulated shaft 34's rotation, and then can guarantee articulated shaft 34 at the stability of hookup location, avoid it to take place to rotate the wearing and tearing that lead to, and then can avoid articulated shaft 34 to take place the axial float.

As shown in fig. 1, according to an embodiment of the present invention, the support member 31 of the suspension device 1 and the car body 2 are fixedly connected to each other, and the rear door connector 33 of the suspension device 1 and the car rear door 3 are detachably connected to each other.

As shown in fig. 1, according to an embodiment of the present invention, the car body 2 includes a side plate 11, a bottom plate, and a front fender. In the present embodiment, the support arm 311 of the support 31 and the side plate 11 are fixedly connected to each other. In the present embodiment, the side of the support arm 311 away from the connecting member 32 and the side plate 11 are welded to each other. Through setting up in the carriage main part the utility model discloses a linkage can effectively get rid of other limit structure to the carriage back door for use the utility model discloses a linkage's carriage structure is more simple, and is with low costs.

As shown in fig. 1, according to an embodiment of the present invention, at least one rib structure 111 is provided on the side plate 11. In the present embodiment, the cross section of the rib structure 111 is arc, triangle, isosceles trapezoid or rectangle. Through set up the effectual assurance of strengthening rib on curb plate 11 the utility model discloses a structural strength in carriage reunites the utility model discloses a linkage and carriage back door are favorable to the stable in structure who guarantees the carriage.

Referring to fig. 2, 3 and 4, according to an embodiment of the present invention, the rotation bearing 6 includes a rotation bearing seat 61 and a bearing 62. In the present embodiment, the rotation support 61 is provided with a bearing mounting hole 611 for mounting the bearing 62, and the bearing 62 is detachably connected to the bearing mounting hole 611. In the present embodiment, an opening 6111 is disposed on a side wall of the bearing mounting hole 611, and a stopper 621 protruding outward in the radial direction is disposed on an outer side surface of the bearing 62. In the present embodiment, the stopper 621 is located in the opening 6111. In the present embodiment, the inner diameter of the bearing mounting hole 611 is matched with the outer diameter of the bearing 62, so that the bearing 62 can be mounted on the rotation support base 61 in the axial direction of the bearing mounting hole 611. Through the above arrangement, the limiting portion 621 is arranged on the outer side surface of the bearing 62, so that the bearing 62 can be effectively disassembled and assembled along the axial direction of the bearing mounting hole 611, and the bearing 62 is more convenient to disassemble and assemble. In particular, when the bearing of the present invention is mounted on the shaft, the limit portion 621 is more convenient to assemble and disassemble the bearing 62. In addition, the relative rotation between the bearing 62 and the rotary supporting seat 61 can be effectively inhibited by arranging the limiting part 621 at the outer side of the bearing 62, so that the wear of the outer side surface of the bearing 62 and the inner wall of the bearing mounting hole 611 is avoided, and the service life is longer and the maintenance cost is lower.

Referring to fig. 2, 3 and 4, according to an embodiment of the present invention, the width of the limiting portion 621 is less than or equal to the width of the opening 6111.

As shown in fig. 2, 3, and 4, according to an embodiment of the present invention, the width of the opening 6111 is greater than the diameter of the bearing 62, and the width of the opening 6111 is smaller than the outer diameter of the bearing 62. Through the setting, can make the utility model discloses a rotation bearing 61 installs in the off-axial side through opening 6111, again through installing bearing 62 between axle and rotation bearing 61. Like this when dismantling the bearing, also can directly pull down bearing 62, can follow the radial bearing 61 that will rotate of axle and directly pull down, make the utility model discloses a dismouting process is more simple and convenient. Simultaneously, the opening width of opening 6111 is less than the external diameter of bearing 62 and has guaranteed like this that rotation support 61 can not break away from in the radial production of bearing 11, has guaranteed the utility model discloses at the stability of rotation process.

Referring to fig. 2 and 4, according to an embodiment of the present invention, the limiting portion 621 is a plate-shaped body disposed along the circumferential direction of the bearing 62. In the present embodiment, the stopper 621 is provided on the outer surface thereof in parallel with the end surface of the bearing 62. The stopper 621 may be provided at a middle position of the outer side surface or a position near the end surface in the axial direction of the bearing 62. Through the arrangement, the position of the limiting part 621 can be conveniently arranged, so that the position of the limiting part 621 has enough space to meet the installation requirement of a dismounting tool, and the bearing is favorably dismounted smoothly.

According to another embodiment of the present invention, the stopper 621 includes a first stopper portion and a second stopper portion. In the present embodiment, the first stopper portion is a plate-like body provided along the circumferential direction of the bearing 62, and the second stopper portion is two plate-like bodies provided side by side in the axial direction of the bearing 62. In the present embodiment, the first stopper portion is provided on the outer side surface thereof in parallel with the end surface of the bearing 62, and the second stopper portion is provided on the outer side surface thereof in perpendicular to the end surface of the bearing 62. In the present embodiment, the second stopper portions are respectively provided at opposite ends of the first stopper portion in the circumferential direction of the bearing 62, and are fixedly connected to each other. In the present embodiment, the second stopper portion and the first stopper portion are fixedly connected to each other to form an "i" shape or a more "concave" shape. Through the aforesaid setting, set up spacing portion 621 into the integrated configuration of a plurality of parts interconnect, effectively increased the connection length and the area of spacing portion 621 with the 62 lateral surfaces of bearing, and then favorable to the joint strength of spacing portion 621 with the 62 lateral surfaces of bearing of reinforcing, make the utility model discloses can dismantle the convenience in the maintenance process, avoid spacing portion 621 and 62 hookup location's fracture and the drawback that can't dismantle. In addition, the combined structure formed by connecting the plurality of parts with each other can effectively form an installation position for installing the disassembling tool, so that the stable connection between the limiting part 621 and the disassembling tool in the disassembling process is ensured, and the efficiency of the disassembling process is ensured to be favorable.

As shown in fig. 2, according to an embodiment of the present invention, further includes: and bearing covers 63 provided on opposite sides of the rotary support base 61 in the axial direction of the bearing mounting hole 611. Through setting up bearing cap 63 and then realize spacing to the axial of bearing 62, guaranteed the stability of bearing 62 mounted position, to guaranteeing the utility model discloses a stable work and the life of rotation supporting are favorable.

According to an embodiment of the present invention, the bearing 62 is a sliding bearing or a rolling bearing.

As shown in fig. 2 and 5, in the present embodiment, the rotation support 61 of the rotation support 1 and the vehicle body 2 are fixedly connected to each other, and the bearing 62 of the rotation support 1 is fitted to the connecting shaft 51 at the rear end of the holder 5.

As shown in fig. 2, according to an embodiment of the present invention, the connecting shaft 51 and the support frame 5 are fixedly connected to each other. In the present embodiment, the connecting shaft 51 and the rear end of the carrier 5 are welded, and the rotation support base 61 and the vehicle body 2 are welded to each other.

According to the above arrangement, when the car body 2 is detached from the carrier 5, the bearing 62 on the turn support 1 is first detached. Since the width of the opening 6111 in the rotation support 61 is larger than the inner diameter of the bearing 62, and further the width of the opening 6111 is larger than the diameter of the connecting shaft 51, the car body 2 and the rotation support 61 can be detached from the connecting shaft 51 together along the radial direction of the connecting shaft 51. Through the above arrangement of the utility model, effectively improved carriage main part 2 and connecting axle 51's dismantlement efficiency, and can not produce the damage to the connecting axle, dismantle efficiently, maintainability is good.

As shown in fig. 5, according to an embodiment of the present invention, the carriage body 2 includes a side plate 11, a bottom plate, and a front fender. In the present embodiment, at least one rib structure 111 is pressed on the side plate 11. In the present embodiment, the rib structure 111 is a groove with an arc, triangle, isosceles trapezoid or rectangle cross section. Through set up the effectual assurance of strengthening rib on curb plate 11 the utility model discloses a structural strength in carriage is favorable to the stable in structure who guarantees the carriage main part.

As shown in fig. 6 and 7, according to an embodiment of the present invention, the locking device 4 includes a locking hook 41, a locking hook seat 42 for supporting the locking hook 41, a locking hook connecting seat 43, and a chain 44 for connecting the locking hook 41 and the locking hook connecting seat 43. In the present embodiment, the latch hook 41 includes: a latch hook connecting arm 411, a pressing arm 412 arranged at one end of the latch hook connecting arm 411, and a connecting lug 413 arranged on the latch hook connecting arm 411. Wherein, one end of the latch hook connecting arm 411 away from the pressing arm 412 is provided with a first mounting position 4111 hinged with the latch hook seat 42; the engaging lug 413 is provided with a second mounting position 4131 connected to one end of the chain 44. In this embodiment, the latch hook connecting arm 411 is a rod-shaped body, and along the length direction of the latch hook connecting arm 411, the distance between the first mounting position 4111 and the second mounting position 4131 is L1, and the length of the latch hook connecting arm 411 is L2, so that the following requirements are satisfied: 2 × L1 < L2. Through the aforesaid setting, with the length setting of latch hook linking arm 411 in above-mentioned within range, thereby make the utility model discloses a latch hook linking arm 411 of latch hook 41 is to keeping away from the direction extension of pressure arm 412, when making the installation on the carriage like this, can set up the position of latch hook seat 42 to the direction of keeping away from the carriage rear end, and then the vertical height between latch hook seat 42 and ground or other devices is low excessively when can effectively avoiding the carriage to unload, and the drawback of taking place to interfere the collision makes this adoption the utility model discloses a tipper carriage's inclination is bigger, and it is high-efficient to unload more fast. Meanwhile, the service life of the locking device is effectively ensured.

As shown in fig. 6 and 7, according to an embodiment of the present invention, one end of the pressing arm 412 is fixedly connected to the latch hook connecting arm 411, and the other end thereof is a free end and freely extends along the direction inclined relative to the latch hook connecting arm 411. In this embodiment, the free end of the pressing arm 412 and the connecting lug 413 are located on the same side of the latch hook connecting arm 411. Through the arrangement, the connecting lug 413 and the pressing arm 412 are arranged on the same side of the locking hook connecting arm 411, so that the connecting lug 413 is further away from the ground, the space distance below the locking hook 41 is larger, and the influence of the structure on the locking hook 41 on the unloading of a carriage is avoided.

Referring to fig. 6 and 7, according to an embodiment of the present invention, the pressing surface 4121 of the pressing arm 412 is a circular arc surface. Through the arrangement, the surface between the pressure arm 412 and the carriage back door is in abutting contact and is changed into line abutting contact, so that the stable abutting contact between the lock hook 41 and the carriage back door can be guaranteed to be favorable for the carriage of the dump truck under different application scenes, and the carriage back door is guaranteed to be tightly closed. In addition, the pressing arm 412 is in line contact with the rear door of the carriage, so that the rapid separation of the latch hook 41 and the rear door of the carriage is facilitated during the unloading process, and the rapid unloading of the dump truck is ensured.

As shown in fig. 6 and 7, according to an embodiment of the present invention, the latch hook connecting seat 43 includes: a first support 431, a connecting rod 432 slidably connected to the first support 431, and an elastic member 433 for providing an elastic force to the connecting rod 432. In this embodiment, the connecting rod 432 is connected to the chain 44.

As shown in fig. 6 and 7, according to an embodiment of the present invention, the first support 431 includes: a support plate 4311, and a limit side plate 4312 arranged around the edge of the support plate 4311. In the present embodiment, the support plate 4311 is provided with a through hole through which the connection rod 432 passes. One end of the connecting rod 432 connected with the chain 44 is located in a cavity enclosed by the limit side plate 4312 and the support plate 4311. In this embodiment, the connecting rod 432 is slidably connected to the support plate 4311. One end of the connecting rod 432 connected with the chain 44 is positioned in a cavity formed by the limit side plate 4312 and the support plate 4311, so that the moving direction of the connecting rod 432 is limited, disordered swing of the connecting rod 432 in the action process is avoided, stability of the moving direction of the connecting rod 432 is guaranteed, and stable opening and closing control of a carriage back door can be realized.

Referring to fig. 6 and 7, according to an embodiment of the present invention, one end of the elastic member 433 abuts against one side of the first supporting member 431 away from the limiting side plate 4312, and the connecting rod 432 passes through the elastic member 433 and abuts against the other end of the elastic member 433. Through the arrangement, the elastic piece 433 can exert the effect of applying elastic force, so that when the carriage back door is in a closed state, the lock hook has certain pressure on the carriage back door, and the stable closing of the carriage back door is guaranteed.

Referring to fig. 6 and 7, according to an embodiment of the present invention, the elastic member 433 is an elastic rubber block. Through adopting the elastic rubber piece, its material is fine and close, and the elastic force is stable and lasting, to guaranteeing the utility model discloses a long-time steady operation is favourable.

Referring to fig. 6 and 7, according to an embodiment of the present invention, the carriage body 1 is rotatably connected to the support frame 5. The latch hook seat 42 of the locking device 4 is fixedly connected with the cross beam 1a at the bottom of the carriage body 1, and the latch hook connecting seat 43 of the locking device 4 is fixedly connected with the bearing frame 5.

According to the utility model discloses, through the latch hook linking arm 411 with latch hook 41 to the direction extension of keeping away from pressure arm 412 for the mounted position antedisplacement (the direction of keeping away from the carriage rear end promptly) of latch hook seat 42 can be on crossbeam 1a, and then has avoided the influence of latch hook seat 42 when unloading to the carriage, makes the utility model discloses a carriage is bigger at the inclination of the in-process of unloading, and it is more abundant to unload fast. Further, the hook connecting arm 411 of the hook 41 extends in a direction away from the pressing arm 412. Also make the focus of whole latch hook 41 further keep away from latch hook linking arm 411 and latch hook seat 42's articulated position like this, and then when the carriage was unloaded, latch hook 41 changed under the action of gravity and breaks away from, had guaranteed opening in time of carriage back door, had makeed the utility model discloses a process of unloading is more high efficiency.

Referring to fig. 6 and 7, according to an embodiment of the present invention, the avoidance groove 1b is formed at a position where the beam 1a is connected to the latch hook seat 42. Through the setting, make the installation the utility model discloses a locking device's position shifts up more, has further avoided the carriage at the in-process of unloading, the utility model discloses with the interference of ground or other devices, make the utility model discloses an application range is more extensive. In addition, the avoidance groove 1b is arranged, so that the tail part rotating space of the lock hook 41 is larger, and the complete separation of the lock hook 41 and a rear door of a carriage in the discharging process is ensured.

As shown in fig. 6 and 7, according to an embodiment of the present invention, the lower end cross member 21 of the car back door 2 of the car body 1 is provided with a receiving groove 211 for receiving the pressing arm 412 of the locking device 4. In the present embodiment, the pressing surface 4121 of the pressing arm 412 may abut against the bottom surface of the receiving groove 211. Through the arrangement, the containing groove is formed in the carriage back door, so that the pressure arm can be immersed into the containing groove 211 when the carriage back door is in a closed state, the protrusion of the pressure arm is avoided, and the device is favorable for avoiding the interference between the carriage and other devices during the unloading process. In addition, through setting up holding tank 211, the material that has effectively avoided upper portion to fall has got into this holding tank 211 in addition, and then guaranteed the cleanliness factor with holding tank 211 bottom surface that press arm 412 to lean on, is favorable to guaranteeing the abundant contact on face 4121 and holding tank 211 ground that presses, has further guaranteed the stable locking effect to the carriage back door.

The foregoing is merely exemplary of embodiments of the present invention and reference should be made to the apparatus and structures herein not described in detail as it is known in the art to practice the same in general equipment and general methods.

The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (17)

1. A dump truck carriage, comprising: the device comprises a carriage main body (1), a carriage back door (2), a suspension device (3) and a locking device (4);

the suspension device (3) is fixedly supported on a side plate (11) of the carriage main body (1) and is used for connecting the carriage main body (1) and the carriage back door (2);

the locking device (4) is fixedly supported at the bottom of the carriage main body (1) and used for locking the carriage back door (2);

the suspension device (3) comprises: a support member (31), a connecting member (32) and a rear door connecting member (33);

the support (31) comprises a support arm (311) and a connecting arm (312);

the connecting arm (312) is fixed on one side of the supporting arm (311) and is arranged adjacent to one end of the supporting arm (311);

the two opposite ends of the connecting piece (32) are respectively hinged with the connecting arm (312) and the rear door connecting piece (33);

the connecting piece (32) can bear against the bearing arm (311), and the rear door connecting piece (33) can bear against the end of the bearing arm (311) remote from the connecting arm (312).

2. The dump truck carriage as claimed in claim 1, wherein a clamping member (321) is provided at a side of the connecting member (32) adjacent to the support arm (311);

the clamping piece (321) is provided with a clamping groove (3211) which is mutually clamped with the supporting arm (311).

3. The dump truck carriage according to claim 2, characterized in that the thickness of the support arm (311) is constant or gradually increasing in a direction away from the connecting member (32).

4. The dump truck carriage as claimed in claim 2, wherein a limit support (3111) for engaging with the engaging groove (3211) is provided at one side or opposite sides of the support arm (311) in a thickness direction of the support arm (311);

the limiting support part (3111) is a right prism or a wedge.

5. The dump truck carriage of any one of claims 1 to 4, characterized in that one end of the support arm (311) remote from the connecting arm (312) is provided with a stopper groove (3112);

and a limiting block (331) matched with the limiting groove (3112) is arranged on one side, adjacent to the supporting arm (311), of the rear door connecting piece (33).

6. The dump truck carriage according to claim 5, wherein a tangent plane (341) is provided on a cylindrical surface of one end of a hinge shaft (34) for the link (32) to hinge with the rear door link (33);

one end of the hinge shaft (34) provided with the cutting plane (341) is connected with the connecting piece (32), and a shaft limiting block (3411) matched with the cutting plane (341) is arranged at the connecting position.

7. The dump truck carriage according to claim 6, characterized in that the locking device (4) comprises: a latch hook (41), a latch hook seat (42) for supporting the latch hook (41), a latch hook connection seat (43), a chain (44) for connecting the latch hook (41) and the latch hook connection seat (43);

the latch hook (41) includes: the locking hook connecting arm (411), a pressing arm (412) arranged at one end of the locking hook connecting arm (411), and a connecting lug (413) arranged on the locking hook connecting arm (411);

one end, far away from the pressure arm (412), of the lock hook connecting arm (411) is provided with a first mounting position (4111) hinged with the lock hook seat (42);

the connecting lug (413) is provided with a second mounting position (4131) connected with one end of the chain (44).

8. The dump truck carriage as claimed in claim 7, wherein one end of the pressure arm (412) is fixedly connected with the latch hook connecting arm (411), and the other end thereof is a free end and freely extends in a direction inclined with respect to the latch hook connecting arm (411);

the free end of the pressing arm (412) and the connecting lug (413) are positioned on the same side of the latch hook connecting arm (411);

the pressing surface (4121) on the pressing arm (412) is an arc surface.

9. The dump truck carriage as claimed in claim 8, wherein the latch hook connection seat (43) comprises: a first support (431), a connecting rod (432) slidably connected to the first support (431), and an elastic member (433) for providing an elastic force to the connecting rod (432);

the connecting rod (432) is connected with the chain (44).

10. The dump truck carriage of claim 9, wherein the first support (431) comprises: a support plate (4311), a limit side plate (4312) arranged around the edge of the support plate (4311);

the supporting plate (4311) is provided with a through hole for the connecting rod (432) to pass through;

one end of the connecting rod (432) connected with the chain (44) is positioned in a cavity enclosed by the limiting side plate (4312) and the supporting plate (4311).

11. The dump truck carriage as claimed in claim 10, wherein one end of the elastic member (433) abuts against one side of the first support (431) away from the limit side plate (4312), and the connecting rod (432) passes through the elastic member (433) and abuts against the other end of the elastic member (433).

12. The dump truck carriage of claim 11, further comprising: a support frame (5) for connecting the carriage body (1) and a rotary support (6) of the support frame (5);

the rotary bearing (6) comprises: the bearing device comprises a rotary supporting seat (61) and a bearing (62), wherein the rotary supporting seat (61) is provided with a bearing mounting hole (611) for mounting the bearing (62), and the bearing (62) is detachably connected with the rotary supporting seat (61);

an opening (6111) is formed in the side wall of the bearing mounting hole (611), and a limiting part (621) protruding outwards in the radial direction is arranged on the outer side face of the bearing (62);

the limiting part (621) is positioned in the opening (6111).

13. The dump truck carriage of claim 12, wherein the width of the opening (6111) is greater than the inner diameter of the bearing (62), and the width of the opening (6111) is less than the outer diameter of the bearing (62);

the limiting part (621) is a plate-shaped body arranged along the circumferential direction of the bearing (62).

14. The dump truck carriage of claim 13, further comprising: and bearing covers (63) respectively arranged on two opposite sides of the rotating support base (61) along the axial direction of the bearing mounting hole (611).

15. The dump truck carriage as claimed in claim 14, wherein the rotary support base (61) of the rotary support (6) and the carriage body (1) are fixedly connected with each other, and a bearing (62) in the rotary support (6) is sleeved on a connecting shaft (51) at the rear end of the bearing frame (5);

the connecting shaft (51) and the bearing frame (5) are fixedly connected with each other.

16. The dump truck carriage as claimed in claim 15, wherein the latch hook seat (42) of the latch device (4) and the cross beam (1a) at the bottom of the carriage body (1) are fixedly connected with each other, and the latch hook connecting seat (43) of the latch device (4) and the backup frame (5) are fixedly connected with each other;

the beam (1a) is connected with an avoiding groove (1b) arranged at the position of the latch hook seat (42).

17. The dump truck compartment as claimed in claim 16, wherein a receiving groove (211) for receiving a pressing arm (412) of the locking device (4) is provided on a lower end cross member (21) of the compartment back door (2);

the pressing surface (4121) of the pressing arm (412) can abut against the bottom surface of the accommodating groove (211).

Images