CN202413335U - A-shaped frame type balanced suspension of heavy mine hinged dump truck - Google Patents

Abstract

An A-frame type heavy-duty mine-used articulated dump truck balance suspension, which is connected to the axle through rubber springs. The balance beam is located on both sides of the frame and connected to the frame through the balance beam shaft; the four rubber springs are respectively located on both sides of the middle and rear axles, and the rubber springs on each side are located at both ends of the balance beam on the side, and are installed on the balance beam and the rear axle. Between the axles, the center line of the rubber spring intersects the center line of the axle perpendicularly; the middle and rear tie rods are located behind the corresponding axles, and one end is connected to the middle and rear tie rod axle brackets through joint bearings. The tie rod axle bracket is connected with the axle, and the other ends of the middle and rear tie rods are connected to the frame through the middle and rear tie rod frame brackets; the front sections of the middle and rear A-frames are connected to the frame through ball bearings, and the rear Both ends are connected to both sides of the axle by bolts, and there is a certain inclination angle between the rear A-frame and the frame; the limit plate is welded on the outside of the frame.

Description

An A-frame type heavy-duty mining articulated dump truck balance suspension

technical field

The utility model relates to the technical field of heavy dump trucks, in particular to an A-shaped frame type heavy mine articulated dump truck balance suspension.

Background technique

The balanced suspension is an important part of the rear suspension of the heavy-duty mining articulated dump truck. It can maintain the good grounding of the middle and rear axle wheels under complex road conditions, thereby improving the vehicle's power and passability. The balance suspension mainly consists of a shock absorber, a longitudinal force transmission element, and a tie rod. The shock absorber is mainly used to transmit the vertical force of more than ten tons between the axle and the frame, and attenuate the vertical vibration. The longitudinal force transmission element is mainly used to transmit the longitudinal force between the frame and the axle, and make the axle move relative to the frame according to a certain track. Tie rods are used to transmit lateral forces between the axle and the frame.

Taking the four shock absorbers of the middle and rear axles as the center respectively, the middle and rear axles will undergo relative movement in the longitudinal elevation, and each axle and the frame will undergo relative movement in the transverse elevation, so the balance suspension In the design, the shock absorber will be subjected to complex three-dimensional forces and moments, and the structural requirements are also high.

Utility model content

The technical problem to be solved by the utility model is to provide a balance suspension of an A-shaped heavy-duty mining articulated dump truck. It has the advantages of simplicity, low production cost, and low maintenance cost.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is: a balance suspension of an A-shaped heavy-duty mining articulated dump truck, which is arranged between the vehicle frame, the middle axle and the rear axle, and Connecting the frame with the middle axle and the rear axle, the balanced suspension is mainly composed of a balance beam, a shock absorbing mechanism, a longitudinal force transmission mechanism and a transverse force transmission mechanism. frame connection, a shock absorbing mechanism is arranged symmetrically between the lower end of the balance beam and the middle axle and rear axle, and the center line of the shock absorbing mechanism is perpendicular to the center line of the corresponding axle;

The longitudinal force transmission mechanism is composed of a middle A-frame and a rear A-frame, the middle A-frame and the rear A-frame are located on both sides of the middle axle, and the rear A-frame is arranged between the middle axle and the rear axle. In between, the top end of the rear A-frame is connected to the frame through ball bearings, and the two free ends on the other side are connected to both ends of the rear axle along the axial direction through fastening components. The top end of the middle A-frame passes through The ball bearing is connected to the frame, and the two free ends on the other side are connected to the two axial ends of the middle axle through fastening components;

The transverse force transmission mechanism is composed of a middle tie rod and a rear tie rod, the middle tie rod and the rear tie rod are located on both sides of the rear axle, the middle tie rod is arranged between the middle axle and the rear axle, and the middle tie rod One end of the rear tie rod is connected to the frame through the bracket I, and the other end is set on the bracket II through the joint bearing. The bracket II is connected with the middle axle. The bracket IV is connected, and the bracket IV is connected with the rear axle;

The shock absorbing mechanism is composed of a rubber spring mechanism and a fixing mechanism. The rubber spring mechanism is formed by alternately stacking and bonding rubber plates and steel plates. The outermost layer is a rubber plate. The height of the rubber spring mechanism is 165-175 ㎜, the ratio of length, width and height of the rubber spring mechanism is 10:6:5, and the thickness of each steel plate is 3-5㎜, and each rubber plate and steel plate are plate-shaped structures with the same shape. The plate-shaped structure consists of four It is surrounded by two sides, wherein two opposite sides are straight sides of equal length, and the other two opposite sides are arc sides of equal length, and round holes of equal size are arranged in the centers of the rubber plate and the steel plate. The fixing mechanism is mainly composed of upper connecting plate, lower connecting plate, upper cone panel, lower cone panel and bolt assembly. The rubber spring mechanism is arranged between the upper connecting plate and the lower connecting plate, and between the upper part of the rubber spring mechanism and the upper connecting plate. An upper cone panel is provided, and a lower cone panel is provided between the lower part of the rubber spring mechanism and the lower connecting plate. The above components are connected by nuts to form an integral structure.

Both the middle A-frame and the rear A-frame are box-shaped cross-section structures.

Both the middle tie rod and the rear tie rod are linear tubular thrust rods.

A conical groove is provided on the upper end surface of the upper conical panel, and an upper spherical washer is provided between the bolt and the conical groove surface of the upper conical panel.

A conical groove is provided on the lower end surface of the lower conical panel, and a lower spherical washer is provided between the nut and the conical groove surface of the lower conical panel.

The beneficial effects of the utility model are:

First, the balanced suspension adopts interlayer rubber springs, A-frame and tie rods, which makes the suspension structure simple, low production cost, and less maintenance cost. For the first time, the inclined rear A-frame is adopted, and the drive shaft is from the rear A-type The frame passes through the arms, making the suspension structure layout simple and compact.

Its two, the damping mechanism of the present utility model adopts the interlayer rubber spring with non-linearity, is made up of rubber spring mechanism and fixed mechanism, and rubber spring mechanism not only has the elastic characteristic and damping characteristic that heavy-duty vehicle suspension requires, and simple in structure, easy to manufacture The utility model has the advantages of simplicity, low production cost, long service life and low use and maintenance cost, and is suitable for being used as an elastic-damping element of the middle and rear suspension of engineering vehicles. In the rubber spring mechanism composed of rubber plates and steel plates alternately stacked, if the shape of the rubber plates and steel plates is improperly designed, it may cause stress concentration in the rubber spring, and in severe cases, it will cause deformation or rupture of the rubber spring. Secondly, the rubber plate The overall performance of the rubber spring is also related to the thickness of the steel plate. The test found that when the two corresponding sides of the rubber block and the steel plate are straight sides and the other two opposite sides are curved sides, the thickness of the matching steel plate is 3-5 At this time, the performance of the shock absorbing device reaches the best. the

Description of drawings

Figure 1 is a front view of the utility model.

Fig. 2 is the bottom view of the utility model.

Fig. 3 is a right view of the utility model.

Fig. 4 is a structural schematic diagram of the shock absorbing mechanism in the utility model.

Marks in the figure: 1, vehicle frame, 2, middle axle, 201, upper support assembly of the middle axle, 202, lower support assembly of the middle axle, 3, rear axle, 301, upper support assembly of the rear axle, 302, Rear axle lower support assembly, 4, balance beam, 401, balance beam shaft, 5, damping mechanism, 501, upper connecting plate, 502, bolt, 503, upper spherical washer, 504, upper cone panel, 505, rubber plate , 506, steel plate, 507, lower cone panel, 508, lower spherical washer, 509, nut, 510, lower connecting plate, 6, middle A frame, 7, rear A frame, 8, middle transverse tie rod, 9, rear Tie rod, 10, support I, 11, support II, 12, support III, 13, support IV, 14, limit plate.

Detailed ways

As shown in the figure, an A-frame type heavy-duty mining articulated dump truck balance suspension, and an A-shaped heavy-duty mining articulated dump truck balance suspension are arranged on the vehicle frame 1 and the middle vehicle axle 2, Between the rear axles 3, and connecting the vehicle frame 1, the middle axle 2, and the rear axle 3, the middle axle upper support assembly 201 and the middle axle lower support assembly are respectively arranged on the upper and lower end surfaces of the middle axle 2 202, the upper and lower end surfaces of the rear axle 3 are respectively provided with the upper support assembly 301 of the rear axle and the lower support assembly 302 of the rear axle. Composed of a transverse force transmission mechanism, the balance beam 4 is located on both sides of the frame 1, and is connected to the frame 1 through the balance beam shaft 401. There is also a limit plate 14 on the frame, and the limit plate 14 that limits the maximum rotation angle of the balance beam is welded On the rear frame, it plays the role of limiting the left and right swing and up and down travel of the balance beam. A shock absorbing mechanism 5 is arranged symmetrically between the lower end surface of the balance beam and the middle axle 2 and the rear axle 3. The centerline of the mechanism 5 is perpendicular to the corresponding axle centerline;

The longitudinal force transmission mechanism is composed of a middle A-frame 6 and a rear A-frame 7, the middle A-frame 6 and the rear A-frame 7 are located on both sides of the middle axle 2, and the rear A-frame 7 is arranged on the middle car Between the bridge 2 and the rear axle 3, the top end of the rear A-frame 7 is connected to the vehicle frame 1 through a ball bearing, and the two free ends on the other side are connected to the rear axle 3 in the axial direction through a fastening assembly. At both ends, the top end of the middle A-frame 6 is connected to the frame 1 through ball bearings, and the two free ends on the other side are connected to the two axial ends of the middle axle 2 through fastening components;

The transverse force transmission mechanism is composed of a middle tie rod 8 and a rear tie rod 9, the middle tie rod 8 and the rear tie rod 9 are located on both sides of the rear axle 3, and the middle tie rod 8 is arranged on the middle axle 2 and the rear axle. Between the bridges 3, one end of the middle tie rod 8 is connected to the frame 1 through the bracket I10, the other end is set on the bracket II11 through the joint bearing, the bracket II11 is connected with the middle car axle 2, and one end of the rear tie rod 9 is passed through the bracket III12 Connected to the frame 1, the other end is connected to the bracket IV13 through the joint bearing, and the bracket IV13 is connected to the rear axle 3;

The shock-absorbing mechanism 5 is composed of a rubber spring mechanism and a fixing mechanism. The rubber spring mechanism is alternately stacked and bonded by rubber plates 505 and steel plates 506. The outermost layer is a rubber plate, and the height of the rubber spring mechanism is 165-175㎜, the ratio of length, width and height of the rubber spring mechanism is 10:6:5, and the thickness of each steel plate is 3-5㎜, and each rubber plate and steel plate are plate-shaped structures with the same shape. The structure is surrounded by four sides, of which two opposite sides are straight sides of equal length, and the other two opposite sides are arc sides of equal length, and round holes of equal size are set in the center of the rubber plate and the steel plate , the fixing mechanism is mainly composed of an upper connecting plate 501, a lower connecting plate 510, an upper cone panel 504, a lower cone panel 507 and a bolt assembly, the rubber spring mechanism is arranged between the upper connecting plate 501 and the lower connecting plate 510, and the rubber An upper cone panel 504 is arranged between the upper part of the spring mechanism and the upper connecting plate 501, and a lower cone panel 507 is arranged between the bottom part of the rubber spring mechanism and the lower connecting plate 510. The bolts 502 pass through the upper connecting plate 501, the upper cone panel 504, The round hole on the rubber spring mechanism, the lower conical panel 507 and the lower connecting plate 510 are connected by nuts 509 to form an integrated structure. The upper end surface of the upper conical panel 504 is provided with a conical groove, and the bolt 502 is connected with the upper An upper spherical washer 503 is provided between the conical groove surfaces of the conical panels 504, and a conical groove is provided on the lower end surface of the lower conical panel 507. A lower spherical washer 508 is provided, and the shock-absorbing mechanism 5 fixes the upper and lower connecting plates and the installation site when in use.

Both the middle A-frame and the rear A-frame adopt box-shaped connecting frames, and the middle and rear tie rods adopt linear tubular thrust rods.

Claims (5)

1. A shape posture heavy type mining articulated truck balance suspension; Be arranged between vehicle frame (1) and middle vehicle bridge (2), the back vehicle bridge (3); And connection vehicle frame (1) and middle vehicle bridge (2), back vehicle bridge (3); It is characterized in that: this balance suspension mainly is made up of equalizing bar (4), damping (5), vertical force transmission mechanism and pass force crossly mechanism, and equalizing bar (4) is positioned at vehicle frame (1) both sides, is connected with vehicle frame (1) through equalizing bar axle (401); Between equalizing bar lower surface and middle vehicle bridge (2), back vehicle bridge (3), be arranged with damping (5), the line of centers of damping (5) is vertical with cooresponding axle center line;

Described vertical force transmission mechanism is made up of middle A type frame (6) and back A type frame (7); Middle A type frame (6) and back A type frame (7) are arranged in the both sides of vehicle bridge (2); Back A type frame (7) is arranged between middle vehicle bridge (2) and the back vehicle bridge (3); The top end of back A type frame (7) is connected on the vehicle frame (1) through ball-bearing casing; Two free ends of opposite side are connected vehicle bridge (3) two ends vertically, back through fastening assembly, and the top end of middle A type frame (6) is connected on the vehicle frame (1) through ball-bearing casing, and two free ends of opposite side are connected middle vehicle bridge (2) two ends vertically through fastening assembly;

Described pass force crossly mechanism is made up of middle intermediate rod (8) and back intermediate rod (9); Middle intermediate rod (8) and back intermediate rod (9) are positioned at the both sides of back vehicle bridge (3); Middle intermediate rod (8) is arranged between middle vehicle bridge (2) and the back vehicle bridge (3), and an end of middle intermediate rod (8) is connected with vehicle frame (1) through support I (10), and the other end is arranged on the support II (11) through oscillating bearing; Support II (11) is connected with middle vehicle bridge (2); One end of back intermediate rod (9) is connected on the vehicle frame (1) through support III (12), and the other end links to each other with support IV (13) through oscillating bearing, and support IV (13) is connected with back vehicle bridge (3);

Described damping (5) is made up of rubber spring mechanism and fixed mechanism; Described rubber spring mechanism is alternately superposeed by rubber plate (505) and steel plate (506) and is bonded; Outermost layer is a rubber plate; The height of rubber spring mechanism is 165-175 ㎜; The length and width of rubber spring mechanism are 10:6:5 at high proportion; Wherein the thickness of every block plate is 3-5 ㎜, and every block of rubber plate is the identical platy structure of shape with steel plate, and this platy structure is surrounded by four limits and forms; Two straight flanges that relative limit is an equal in length wherein; Two other relative limit is equal in length arc limit, is equipped with equal-sized circular hole at the center of rubber plate and steel plate, and described fixed mechanism mainly is made up of upper junction plate (501), lower connecting plate (510), epicone panel (504), following conical surface plate (507) and bolt assembly; Rubber spring mechanism is arranged between upper junction plate (501) and the lower connecting plate (510); Be provided with epicone panel (504) between rubber spring mechanism top and the upper junction plate (501), be provided with down conical surface plate (507) between rubber spring mechanism bottom and the lower connecting plate (510), bolt (502) passes circular hole in upper junction plate (501), epicone panel (504), the rubber spring mechanism successively, conical surface plate (507) also will be connected with upper-part through nut (509) with lower connecting plate (510) and be integrative-structure down.

2. a kind of A shape posture heavy type mining articulated truck balance suspension according to claim 1 is characterized in that: A type frame (6) and back A type frame (7) are the box section structure in described.

3. a kind of A shape posture heavy type mining articulated truck balance suspension according to claim 1 is characterized in that: intermediate rod (8) and back intermediate rod (9) are the straight tubular propelling rod in described.

4. a kind of A shape posture heavy type mining articulated truck balance suspension according to claim 1; It is characterized in that: described epicone panel (504) upper surface is provided with conical socket, is provided with spherical washer (503) between the conical socket face of bolt (502) and epicone panel (504).

5. a kind of A shape posture heavy type mining articulated truck balance suspension according to claim 1; It is characterized in that: described conical surface plate (507) lower surface down is provided with conical socket, is provided with lower peripheral surface packing ring (508) between the conical socket face of nut (509) and following conical surface plate (507).

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