End structure of linear sorting machine

Abstract

The utility model relates to an end structure of a linear sorting machine, which comprises a bent rail rack, bearing seats are fixed at two ends of the bent rail rack through fasteners, a mandrel is mounted between the two bearing seats, bent rails are symmetrically mounted on the mandrel, a slide wire support is arranged between the two bent rails, the slide wire support penetrates through the mandrel, and the mandrel is connected with the bearing seats. Meanwhile, the slide wire bracket is fixed with the bent rail rack through a fastener, and a single bent rail is locked with the bent rail rack through a plurality of transverse supports; a limiting guide plate is installed on the inner side of each bent rail in a matched mode, and when the trolley passes through a curve, the walking wheels achieve reversing in the bent rails. A cast integrated structure is adopted, compared with a sheet metal part welding structure, impact, vibration and noise are reduced, the structural strength is improved, the fracture risk is avoided, and compared with chain wheel transmission, the structure is simple, the whole machine is lighter, and the cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics express sorting equipment, in particular to an end structure of a linear sorting machine. Background Art

[0002] At present, linear sorting machines have been widely used in logistics express sorting equipment. With a compact structure, they change the traditional horizontal circulating mode of cross belts into a vertical circulating mode. The trolley needs to make two reversals at the end curved rails when running along the track. The smoothness of the trolley running at the reversing curved rails directly affects the overall running stability of the trolley on the track. Therefore, the quality and structural reliability of the end curved rails directly affect the overall performance of the equipment.

[0003] The end structures of linear sorting machines in the prior art are mainly divided into two types:

[0004] One is chain drive, which realizes reversing through sprocket drive. The reversing is stable, but it is only applicable to the case of smaller pitch. As the pitch of the trolley increases, the turning radius increases, and the size, weight and cost of the sprocket will all increase. Moreover, the chain drive needs to be tensioned regularly, and the end space is insufficient and difficult to operate.

[0005] The other is curved rail reversing. The curved rail is mainly formed by welding sheet metal parts to form inner and outer arc tracks. The running wheels reverse in the arc tracks to realize continuous running on the upper and lower tracks. However, instantaneous impact and vibration will be caused when the running wheels reverse, resulting in relatively large noise and insufficient structural rigidity. There is a risk of welding detachment and fracture of the curved rail under long-term impact, posing a safety hazard. Content of the Utility Model

[0006] The applicant of the present utility model aims at the above-mentioned disadvantages in the existing production technology, and provides an end structure of a linear sorting machine. Thus, a curved rail design is adopted. The whole curved rail adopts a cast integral structure. Compared with the welded structure of sheet metal parts, it reduces impact and vibration, reduces noise, increases structural strength, and has no fracture risk. Compared with sprocket drive, it has a simple structure, the whole machine is lighter, and the cost is lower.

[0007] The technical solution adopted by the present utility model is as follows:

[0008] An end structure of a linear sorting machine includes a curved rail frame. Bearings are fixed at both ends of the curved rail frame through fasteners. A mandrel is installed between the two bearings. Curved rails are symmetrically installed on the mandrel. A trolley wire support is arranged between the two curved rails. The trolley wire support passes through the mandrel and is fixed to the curved rail frame through fasteners. Each single curved rail is locked to the curved rail frame through a plurality of transverse supports; a limiting guide plate is installed inside each single curved rail in a matching manner. When the trolley passes through the curved track, the running wheels realize reversing in the curved rail.

[0009] The structure of a single curved track is as follows: it includes an outer track, an inner track, a central shaft hole, a web plate, and an inlet surface. The curved rail panels of both the outer track and the inner track adopt a semi-circular edge structure. A running groove for the running wheels to pass through is formed between the outer track and the inner track. The limit guide plate is installed at the inner side position of the inner track.

[0010] As a further improvement of the above technical solution:

[0011] The central shaft hole is located at the center of the circle of the curved track, and a mandrel is installed at the central shaft hole.

[0012] The web plates are evenly distributed at the inner side position of the curved rail panels.

[0013] The inlet surface is an inclined surface, and the inlet surface connects the running wheels of the trolley to enter the straight track from the curved track.

[0014] Threaded holes for installing the limit guide plate are also provided on the curved track.

[0015] The limit guide plate has an arc-shaped structure and includes a guide wheel running surface, a counterbore, and an avoidance hole. The guide wheel running surface is the surface that the guide wheel contacts. The counterbore is locked with the curved track through fasteners, and the avoidance hole has a groove structure.

[0016] The curved rail frame adopts an integral structure.

[0017] Foot sleeves are installed at the bottoms of the four legs of the curved rail frame through fasteners.

[0018] A single curved track is cast from ductile iron.

[0019] Mounting holes are provided on the main board of the trolley wire support.

[0020] The beneficial effects of the present utility model are as follows:

[0021] The structure of the present utility model is compact, reasonable, and easy to operate. It adopts an integral casting structure. Compared with the welded structure of sheet metal parts, it reduces impact, vibration, and noise, increases the structural strength, and has no risk of fracture. Compared with sprocket drive, the structure is simple, the whole machine is lighter, and the cost is lower.

[0022] At the same time, the present utility model also has the following advantages:

[0023] (1) The curved track of the present utility model adopts an integral ductile iron casting structure, which reduces the impact and vibration when the running wheels move in the track, reduces noise, increases the overall structural strength, and avoids the risk of fracture and welding opening, realizing the smooth commutation of the running wheels in the track.

[0024] (2) A limit guide plate is added to the inner side of the curved track of the present utility model to limit the offset of the running wheels of the trolley in the vertical direction of movement and reduce the risk of rubbing between the running wheels of the trolley and the edge of the curved track.

[0025] (3) The two side-bent tracks of the present utility model are connected by a mandrel. The vertical bearing is adjusted to ensure concentricity, and they are connected to the frame by bolts to form an integral structure.

[0026] (4) The present utility model can make the connection between the bent track and the straight track remain flat, ensure the smooth import and export of the walking wheels, and reduce the impact noise.

[0027] (5) A sliding contact wire bracket is installed at the end of the sorting machine of the present utility model. It is connected to the inner side of the bent track by bolts, which is convenient for arranging the sliding contact wire of the bent track and ensures normal power supply when the trolley passes through the bent track. Description of the Drawings

[0028] Figure 1 is a schematic structural view of the present utility model.

[0029] Figure 2 is a schematic structural view of the present utility model from another perspective.

[0030] Figure 3 is a schematic structural view of the present utility model from another perspective (reverse side).

[0031] Figure 4 is an exploded view of the present utility model.

[0032] Figure 5 is a schematic structural view of the bent track of the present utility model.

[0033] Figure 6 is a schematic structural view of the bent track of the present utility model from another perspective.

[0034] Figure 7 is a front view of the bent track of the present utility model.

[0035] Figure 8 is a front view of the limit guiding plate of the present utility model.

[0036] Wherein: 1, bent track frame; 2, bent track; 3, sliding contact wire bracket; 4, transverse support; 5, limit guiding plate; 6, mandrel; 7, bearing seat; 8, foot sleeve;

[0037] 201, outer track; 202, inner track; 203, central axis hole; 204, web; 205, threaded hole; 206, guiding surface;

[0038] 501, guiding wheel running surface; 502, counterbore; 503, relief hole. Detailed Embodiment

[0039] The following will describe the detailed embodiment of the present utility model with reference to the drawings.

[0040] AsFigures 1 - 8 As shown in Figures 1 - 8 , the end structure of the linear sorting machine in this embodiment includes a curved rail frame 1. Bearing seats 7 are fixed at both ends of the curved rail frame 1 through fasteners. A mandrel 6 is installed between the two bearing seats 7. Curved rails 2 are symmetrically installed on the mandrel 6. A trolley wire support 3 is arranged between the two curved rails 2. The trolley wire support 3 passes through the mandrel 6 and is fixed to the curved rail frame 1 through fasteners. A single curved rail 2 is locked to the curved rail frame 1 through a plurality of transverse supports 4; a limiting guide plate 5 is installed on the inner side of a single curved rail 2 in a matching manner. When the trolley passes through the curved track, the running wheels are redirected in the curved rail 2.

[0041] The structure of a single curved rail 2 is as follows: It includes an outer rail 201, an inner rail 202, a central shaft hole 203, webs 204, and a guiding surface 206. The curved rail panels of the outer rail 201 and the inner rail 202 both adopt a semi-circular edge structure. A running groove for the running wheels to pass through is formed between the outer rail 201 and the inner rail 202. The limiting guide plate 5 is installed at the inner side position of the inner rail 202.

[0042] The central shaft hole 203 is located at the center of the circle of the curved rail 2, and the mandrel 6 is installed at the central shaft hole 203.

[0043] The webs 204 are evenly distributed at the inner side position of the curved rail panel.

[0044] The guiding surface 206 is an inclined surface, and the guiding surface 206 connects the running wheels of the trolley to enter the straight track from the curved rail 2.

[0045] Threaded holes 205 for installing the limiting guide plate 5 are also provided on the curved rail 2.

[0046] The limiting guide plate 5 has an arc-shaped structure, including a guiding surface 501 for the guiding wheels, a counterbore 502, and an avoidance hole 503. The guiding surface 501 is the surface that contacts the guiding wheels. The counterbore 502 is locked to the curved rail 2 through fasteners. The avoidance hole 503 has a groove structure.

[0047] The curved rail frame 1 adopts an integral structure.

[0048] Foot sleeves 8 are installed at the bottoms of the four legs of the curved rail frame 1 through fasteners.

[0049] A single curved rail 2 is cast from ductile iron.

[0050] Mounting holes are left on the main board of the trolley wire support 3.

[0051] The working principle of the present utility model is as follows:

[0052] The end structure of the linear sorting machine is the reversing part of the trolley of the linear sorting machine. After the trolley transports the sorted goods on the upper track, it passes through the curved track 2 of the end structure to reach the lower track, returns to the starting position, and then passes through the curved track 2 of the end structure to reach the upper track to complete the cycle.

[0053] The end structure of the linear sorting machine described in the utility model is mainly composed of a curved track 2, a limiting guide plate 5, a spindle 6, a bearing seat 7, a transverse support 4, a busbar bracket 3, a curved track frame 1, and a foot cover 8.

[0054] The curved track 2 is the main component of the end structure, which is cast from ductile iron and then processed by a CNC milling machine to ensure accuracy. The curved track panels of the outer track 201 and the inner track 202 both have semicircular edges, and a running groove is formed between the two for the running wheels to pass through. The curved track can reduce the impact vibration of the running wheels when they are running in the track, reduce noise, and increase the overall structural strength to avoid fracture and welding. The main part of the curved track 2 is opened to reduce the overall weight.

[0055] Specifically, the curved track 2 includes an outer track 201, an inner track 202, a center axis hole 203, a web 204 and an introduction part. When the trolley passes through a curve, the running wheel realizes reversal in the curved track; the center axis hole 203 is located at the center of the curved track 2, and the spindle 6 is installed to play a positioning role, ensuring that the curved tracks 2 on both sides are concentric, so that the trolley can run smoothly. The web 204 is evenly distributed on the inner side of the curved track panel, mainly to increase the main body strength and prevent the curved track body from deformation. The introduction part is an inclined surface, which is used to make the trolley guide wheel smoothly enter the straight track from the curved track 2.

[0056] A limit guide plate 5 is installed on the curved track 2, and the two are connected by bolts. The limit guide plate 5 is laser cut and polished, and is assembled with the curved track 2 to form a curved track assembly, which reduces the difficulty of casting a thin wall of the curved track 2 and increases the overall strength of the walking part.

[0057] The limiting guide plate 5 can limit the left and right swing of the running wheels of the trolley during the curve, thereby avoiding the risk of friction with the curved rail.

[0058] Specifically, the limiting guide plate 5 includes a guide wheel walking surface 501, a countersunk hole 502, and an avoidance hole 503. The guide wheel walking surface 501 is the surface that mainly contacts the guide wheel and needs to maintain flatness; the countersunk hole 502 is a bolt hole connected to the curved rail to avoid interference with the walking plane of the walking wheel; the avoidance hole 503 is to avoid interference with the cast rounded corner part of the curved rail upper plate 204.

[0059] The spindle 6 passes through the center hole to connect the curved tracks 2 on both sides to ensure the concentricity of the tracks. The two ends of the spindle 6 are fixed on the bearing seat 7, and the bearing seat 7 is connected to the curved track frame 1 by bolts.

[0060] The curved track 2 is fixed on the curved rail frame 1 by relying on the horizontal support 4 at the center position of the semi-circle. A three-point connection is formed through the vertical surface fixing plate of the curved track 2, the mandrel 6, and the horizontal support 4 to ensure the structural stability.

[0061] The trolley wire support 3 is connected to the curved rail frame 1 by bolts. Each component is welded to form an integral body. Installation holes are left on the main board of the trolley wire support 3 for installing the trolley wire to ensure the power supply of the trolley.

[0062] The curved rail frame 1 is the overall frame and fixed structure of the end structure. Other components are connected to the frame by bolts to form an integrated structure. The foot sleeves 8 are the fixed parts of the curved rail frame 1, located on the four legs of the support, fixed by the anchor bolts, and the height is adjusted by the height adjustment bolts to ensure the levelness.

[0063] The working process of the present utility model is as follows:

[0064] The trolley of the linear sorting machine runs along the track and changes direction twice at the curved tracks 2 at both ends. The end structure directly affects the running stability of the trolley and the vibration and noise of the whole machine. The inner track 202 of the curved track of the end structure is kept horizontal with the running surface of the upper straight track running wheel, and the outer track 201 is kept horizontal with the running surface of the lower straight track running wheel. The trolley running wheel is located in the running groove between the outer track 201 of the curved track and the inner track 202. The distance between the outer track 201 and the inner track 202 is greater than the diameter of the running wheel by about 1mm, which is convenient for the wheel to change direction in the track without shaking and generating noise. When the trolley runs from the upper straight track to the curved track 2, the wheels move closely to the inner track 202; when the trolley runs from the lower straight track to the curved track 2, the wheels move closely to the outer track 201; when the trolley enters the upper straight track from the curved track 2, the wheels of the trolley slide out closely to the inner track 202 and enter the straight track; when the trolley enters the lower straight track from the curved track 2, the wheels of the trolley slide out closely to the outer track 201 and enter the straight track. When the trolley enters the curved track 2 from the straight track, the guide wheel enters the introduction surface 206 along the edge of the straight track, and then enters the limit guide plate 5. The gap between the limit guide plate 5 and the guide wheel is 1mm to avoid the installation error causing the guide wheel to get stuck; when the trolley enters the straight track from the curved track 2, the guide wheel enters the curved track introduction surface 206 along the limit guide plate 5, and then enters the edge of the straight track. During the movement, the trolley will be located in the center of the track to avoid the noise and damage to the guide wheel caused by the collision between the guide wheel and the straight track. When the trolley is running on the curved track, the center position of the circle is concentric with the spindle 6. The spindle 6 plays a positioning role to ensure that the curved tracks 2 on both sides are concentric. The two ends of the spindle 6 are fixed on the bearing seat 7. The bearing seat 7 is a vertical bearing seat, which is connected to the curved track frame 1 by bolts. It has better positioning ability and has the self-aligning performance to adjust the axis deviation, ensuring the service life of the bearing and the shaft, thereby ensuring the normal use of the curved track. The busbar bracket 3 is connected to the frame by bolts, and the various components are welded to form a whole. The main board of the busbar bracket 3 is provided with mounting holes for installing the busbar. When the trolley runs on the curved track 2, the carbon brush of the trolley is compressed over the curve to ensure the continuity of the carbon brush operation. At the same time, the carbon brush draws electricity to ensure the power supply of the trolley.

[0065] The utility model adopts a ductile iron casting integrated structure, which reduces the impact and vibration of the running wheel when running in the track, reduces noise, increases the overall structural strength to avoid the risk of fracture and welding, and ensures smooth reversing of the running wheel in the track.

[0066] The inner limiting guide plate 5 of the curved track 2 described in the utility model limits the shaking deviation of the running wheels in the vertical movement (left and right) direction when the trolley moves at high speed, reduces the risk of the trolley running wheels rubbing against the edge of the curved track 2, and ensures that the running wheels are smoothly introduced and led out between the straight track and the curved track 2.

[0067] The curved tracks 2 on both sides of the utility model are connected by a spindle 6, the vertical bearing is adjusted to ensure concentricity, and are connected to the frame by bolts to form an integrated structure.

[0068] The factory installation of the utility model is an integral structure, which reduces the on-site assembly time and ensures the installation accuracy.

[0069] The overall walking and rotation of the utility model are stable in direction, reducing the vibration and noise of the equipment. The walking wheels are smoothly imported and exported between the straight track and the curved track 2. Its overall structural strength is high, improving the stability of the equipment and reducing risks.

[0070] The above description is an explanation of the utility model, not a limitation thereof. The scope defined by the utility model is referred to the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. An end structure of a linear sorting machine, characterized in that: It includes a bent rail frame (1). At both ends of the bent rail frame (1), bearing seats (7) are fixed by fasteners. A mandrel (6) is installed between the two bearing seats (7). Bent rails (2) are symmetrically installed on the mandrel (6). A trolley wire support (3) is arranged between the two bent rails (2). The trolley wire support (3) passes through the mandrel (6), and at the same time, the trolley wire support (3) is fixed to the bent rail frame (1) by fasteners. A single bent rail (2) is locked to the bent rail frame (1) through a plurality of transverse supports (4); a limiting and guiding plate (5) is fitted and installed on the inner side of a single bent rail (2). When the trolley passes through the bend, the running wheels achieve commutation in the bent rail (2). The structure of a single bent rail (2) is as follows: It includes an outer rail (201), an inner rail (202), a central shaft hole (203), webs (204), and a guiding surface (206). The bent rail panels of the outer rail (201) and the inner rail (202) both adopt a semi-circular edge structure. A running groove for the running wheels to pass through is formed between the outer rail (201) and the inner rail (202). The limiting and guiding plate (5) is installed at the inner side position of the inner rail (202).

2. The end structure of a linear sorting machine according to claim 1, characterized in that: The central shaft hole (203) is at the center position of the bent rail (2), and the mandrel (6) is installed at the central shaft hole (203).

3. The end structure of a linear sorting machine according to claim 1, characterized in that: The webs (204) are evenly distributed at the inner side position of the bent rail panel.

4. The end structure of a linear sorting machine according to claim 1, characterized in that: The guiding surface (206) is an inclined surface, and the guiding surface (206) connects the running wheels of the trolley to enter the straight rail from the bent rail (2).

5. The end structure of a linear sorting machine according to claim 1, characterized in that: Threaded holes (205) for installing the limiting and guiding plate (5) are also opened on the bent rail (2).

6. The end structure of a linear sorting machine according to claim 1, characterized in that: The limiting and guiding plate (5) has an arc-shaped structure and includes a guiding surface for the running wheels (501), a counterbore (502), and an avoidance hole (503). The guiding surface for the running wheels (501) is the surface in contact with the running wheels. The counterbore (502) is locked to the bent rail (2) by fasteners. The avoidance hole (503) has a groove structure.

7. The end structure of a linear sorting machine according to claim 1, characterized in that: The bent rail frame (1) adopts an integral structure.

8. The end structure of a linear sorting machine according to claim 1, characterized in that: Foot sleeves (8) are installed at the bottoms of the four legs of the bent rail frame (1) by fasteners.

9. The end structure of a linear sorting machine according to claim 1, characterized in that: A single bent rail (2) is cast from ductile iron.

10. The end structure of a linear sorting machine according to claim 1, characterized in that: Mounting holes are left on the main board of the trolley wire support (3).

Images