Hook device for a chassis side rail

Abstract

The hook device for the side beam of the chassis belongs to the field of the lifting hook device of the chassis of the railway vehicle, comprising a sling shackle mechanism and a steel wire sling, the shackle mechanism comprising a shackle and a shackle connecting rod connected with each other in the rotation shaft, and the end section of the steel wire sling is suspended and linked with the shackle ring of the shackle; the hook device further comprises an outer hook, a rotation shaft bolt, a plurality of bolt fasteners, an inner hook, an inner pad, and an outer pad, the lower parts of the outer hook and the inner hook are fixedly connected through the plurality of bolt fasteners; the upper end of the outer side of the outer hook is rotationally connected with the lower end of the shackle connecting rod through the rotation shaft bolt; the outer pad is fixedly connected on the vertical inner end face of the outer hook in a detachable manner, and the inner pad is fixedly connected on the vertical outer end face of the inner hook in a detachable manner. The present application can reliably clamp and horizontally hoist the frame of the four corners of the chassis of any straight side beam or inclined side beam with any inclination angle and size parameters.

Description

Technical Field

[0001] This invention belongs to the field of lifting and hoisting devices for railway vehicle underframes, and specifically relates to a hook device for the side beams of the underframe. Background Technology

[0002] Stainless steel rail vehicles are favored by many countries and regions due to their corrosion resistance and lightweight properties, and have become one of the main configurations for urban passenger vehicles. However, due to differences in vehicle operating environments and clearance requirements in various countries and regions, different structural requirements are placed on stainless steel rail vehicles.

[0003] like Figure 1 The stainless steel underframe of the rail vehicle shown is a large, integral welded structure with multiple parallel longitudinal beams welded between two parallel side beams G. For example... Figure 2 As shown, the base frame side beams with a steel plate thickness of D1 mainly come in two forms: straight side beams and inclined side beams. The cross-section of the straight side beam G1 is similar to that of a channel steel. Its upper and lower straight side beam flanges G1-1 are parallel to each other with an inner wall spacing of H1. The flange widths of both the straight side beam flange G1-1 and the inclined side beam flange G2-1 are L1. The web surface G1-2 of the straight side beam is perpendicular to both the straight side beam flange G1-1 and the inclined side beam flange G2-1. The dimensions of the inclined side beam flange G2-1 of the inclined side beam G2 are exactly the same as those of the straight side beam flange G1-1. ， However, the angle α between the web surface G2-2 and the flange surface G2-1 of the hypotenuse beam is acute. 。 also ， The outer side wall of the base frame side beam is a smooth plane, and each edge is rounded. Conventional clamps are prone to slipping, so it is impossible to make an effective hoisting and positioning clamp to fix it during hoisting.

[0004] Currently, when using overhead cranes in conjunction with slings to lift the underframe, the slings act directly on the side beams of the underframe only through static friction. Therefore, it is necessary to strictly control the lifting height and speed of the two sets of overhead cranes to be consistent. Otherwise, if there is a deviation in the lifting height, the underframe may slip under the action of gravity due to the static friction, which may lead to production safety accidents such as collisions with workpieces or injuries to personnel. Summary of the Invention

[0005] To address the technical problems of existing underframe side beams having both straight and inclined forms, with smooth outer walls and rounded chamfers, making them prone to slippage with conventional clamps; and the lack of effective lifting and positioning clamps at the sling's point of application, resulting in the sling acting directly on the underframe side beams through static friction during underframe hoisting, and when the lifting height or translation speed of two sets of overhead cranes is inconsistent, the underframe is prone to slippage under gravity due to overcoming static friction, leading to safety accidents such as collisions with underframe workpieces or injuries to personnel, this invention provides a hook device for underframe side beams.

[0006] The technical solution adopted by this invention to solve the technical problem is as follows:

[0007] A hook device for a base frame side beam includes a sling shackle mechanism and a wire sling. The shackle mechanism includes a shackle and a shackle connecting rod that are pivotally connected to each other. The end of the wire sling is suspended and connected to the buckle of the shackle. The hook device is characterized by further including an outer hook, a pivot bolt, multiple bolt fasteners, an inner hook, an inner pad, and an outer pad. The lower parts of the outer hook and the inner hook are fixedly connected by multiple bolt fasteners. The upper end of the outer side of the outer hook is rotatably connected to the lower end of the shackle connecting rod by a pivot bolt. The outer pad is detachably fixed to the vertical inner end face of the outer hook, and the inner pad is detachably fixed to the vertical outer end face of the inner hook.

[0008] The outer hook includes a double-clamp horizontal hook head, hook body, double-clamp hook tail, outer pad mounting base, limiting block, and reinforcing rib block. The double-clamp hook tail is located on the outer side above the double-clamp horizontal hook head and is connected to each other through the hook body; the three are integrally formed. A set of horizontal hook head double-clamp bolt holes with front and rear passages are horizontally opened in the middle of the side wall of the double-clamp horizontal hook head. The outer rear side of the hook body is inclined, and the vertically arranged outer pad mounting base is fixed to the inner side of the hook body and perpendicular to the upper end face of the horizontal hook head. The limiting block spans across and is fixed to the upper end face of the double-clamp hook tail and is adjacent to the outer pad mounting base. The reinforcing rib block is horizontally... The outer pad is fixed to the inclined surface on the rear side of the hook body; the vertical front end face of the outer pad mounting base is provided with multiple stud through holes, and the rear end face of the outer pad is provided with multiple pad studs. The pad studs pass through the corresponding stud through holes and are locked with nuts to fix the outer pad to the front end of the outer pad mounting base; the tail end of the double-clamp hook tail is provided with a set of double-clamp swivel bolt holes that run through the front and rear. The swivel bolts are threaded to the two double-clamp swivel bolt holes to form the hook tail swivel seat. The lower end of the shackle connecting rod is inserted into the double-clamp slit of the double-clamp hook tail and is rotatably connected to the hook tail swivel seat through the swivel bolts.

[0009] The inner hook is a C-shaped steel plate with a horizontal lateral slot in the middle. The upper half of the C-shape of the inner hook is the inner pad mounting base, and the lower half of the C-shape of the inner hook is the inner hook insertion screw hole plate. The inner hook insertion screw hole plate has multiple inner hook insertion screw hole groups. The bolt holes of the horizontal hook head double clamp plate and the inner hook insertion screw hole groups are fixedly connected by at least two bolt fasteners, and the upper end face of the horizontal hook head of the double clamp plate is parallel to the lateral slot. A horizontal rectangular positioning clamp plate is welded and fixed to the upper and lower side walls of the slot in the middle section of the lateral slot. The two rectangular positioning clamp plates are parallel to each other and perpendicular to the side wall end face of the inner hook. The distance between the two rectangular positioning clamp plates is D2 = 105%D1. The rear end of the inner pad is detachably fixed to the longitudinal through hole array on the inner pad mounting base by multiple bolt fasteners.

[0010] The front end face of the inner pad is the inner clamping pad, and the front end face of the outer pad is the outer clamping pad. The end faces of the inner and outer clamping pads are parallel and the slit width between them is D3, and D3 = 105%D1.

[0011] The angle between the slit P and the end face of the rectangular positioning clamp is β. ， And β ＝ α ； The length of the upper end face of the horizontal hook is L2, and 105%L1≤L2≤110%L1; the slot length of the lateral groove is the same as the length of the upper end face of the horizontal hook; the height of the inner pad is H2, the height of the outer pad is H3, H2=H3, and 70%H1≤H2≤90%H1.

[0012] The beneficial effects of this invention are as follows: The hook device for the side beam of the base frame has a vertically arranged outer pad that is detachably fixed to the vertical front end face of the outer pad mounting base, so that the outer pad and the outer hook together form an outer hook seat mechanism A; the inner pad is detachably fixed to the vertical outer end face of the inner hook, and the two together form an inner hook seat mechanism B. The lower parts of the outer hook and the inner hook are fixed by multiple bolts, so that the outer hook seat mechanism A and the inner hook seat mechanism B together form the main structure of this hook device. The inner hook is a C-shaped steel plate with a horizontal lateral groove in the middle, and its lateral groove is parallel to the upper end face of the double-clamp horizontal hook head; a horizontal rectangular positioning clamp is welded and fixed to the upper and lower side walls of the middle section of the lateral groove. The distance between the two rectangular positioning clamps is D2 = 105%D1, and the length of the upper end face of the horizontal hook is L2, and 105%L1≤L2≤110%L1, so that any straight edge beam flange G1-1 of the straight edge beam or any oblique edge beam flange G2-1 of the oblique edge beam can be horizontally inserted into the oblique slot from the oblique opening end of the oblique slot and clamped and limited by the upper and lower rectangular positioning clamps.

[0013] On the other hand, the end faces of the inner clamping pad and the outer clamping pad are parallel, and the width of the slit P between them is D3. ， And D3 ＝ 105% ， The angle between the slit P and the end face of the rectangular positioning clamp is β. ＝ α ；The height of the inner clamping pad is H2, and the height of the outer clamping pad is H3, where H2 = H3 and 70%H1≤H2≤90%H1. This parameter setting of the dimensional chain allows the inner clamping pad to be embedded between the inner sections of the upper and lower flanges of the side beam, and enables the inner and outer clamping pads to clamp and position any straight side beam web surface G1-2 or inclined side beam web surface G2-2 from the inner and outer sides, respectively.

[0014] Since the inclination angle and dimensional parameters of the inner and outer pads are prefabricated according to the size and shape of different models of base frame side beams, they can be temporarily matched and replaced according to actual engineering needs. This allows the hook device for base frame side beams of the present invention to clamp and position any straight or inclined beam base frame with any inclination angle and dimensional parameters. It completely overcomes the technical problems of conventional clamps easily slipping due to the smooth outer wall of the side beam and the presence of chamfered edges; and the old method of lifting the base frame and side beam based solely on the static friction of the sling, which easily leads to the base frame slipping under the action of gravity due to the inconsistent lifting height or translation speed of the two sets of overhead cranes, thus causing safety accidents such as collisions with workpieces or injuries to personnel.

[0015] After connecting the two hook devices of the present invention for the side beams of the base frame to the steel wire slings of the overhead crane to form a complete set of horizontal hoisting slings, the two sets of horizontal hoisting slings can be used simultaneously to reliably clamp and horizontally hoist any straight or inclined side beam base frame at the four corners of the frame.

[0016] Furthermore, the hook device for the side beam of the base frame of the present invention has the advantages of simple and practical structure, convenient operation, low cost, and easy promotion and popularization. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the existing base frame side beams and its corresponding front view;

[0018] Figure 2 This is a schematic diagram of the main structure of the straight and inclined beams of the existing base frame;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the hook device for the side beam of the base frame according to the present invention;

[0020] Figure 4 This is an exploded assembly schematic diagram and a front view of the hook device for the side beam of the base frame according to the present invention;

[0021] Figure 5 These are perspective views and front views of the outer hook of the present invention;

[0022] Figure 6 This is an exploded assembly diagram of the inner hook and inner pad block of the present invention;

[0023] Figure 7 yes Figure 6 The main view;

[0024] Figure 8 These are perspective views and front views of the outer pad of the present invention;

[0025] Figure 9 This is an exploded assembly diagram of the outer hook of the present invention being assembled with the outer pad of the rotating shaft bolt and the shackle mechanism respectively.

[0026] Figure 10 This is a schematic diagram showing the assembly relationship between the sling shackle mechanism and the wire sling of the present invention;

[0027] Figure 11 This is a perspective view of a complete set of horizontal hoisting slings formed by two hook devices of the present invention for the side beams of the underframe being connected to the steel wire slings of the overhead crane.

[0028] Figure 12 yes Figure 11 A magnified view of part I in the middle;

[0029] Figure 13 This is a schematic diagram illustrating the application of the hook device of the present invention for the side beam of the base frame;

[0030] Figure 14 yes Figure 13 The main view;

[0031] Figure 15 yes Figure 14 Part II features an enlarged view. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] like Figures 3 to 10 As shown, the hook device for the side beam of the base frame of the present invention includes a sling shackle mechanism 7 and a wire sling 8. The shackle mechanism 7 includes a shackle 7-1 and a shackle connecting rod 7-2 that are pivotally connected to each other. The end of the wire sling 8 is suspended and connected to the buckle of the shackle 7-1. The lock also includes an outer hook 1, a pivot bolt 2, multiple bolt fasteners 3, an inner hook 4, an inner pad 5, and an outer pad 6. The lower parts of the outer hook 1 and the inner hook 4 are fixedly connected by multiple bolt fasteners 3. The upper end of the outer side of the outer hook 1 is rotatably connected to the lower end of the shackle connecting rod 7-2 by the pivot bolt 2. The outer pad 6 is detachably fixed to the vertical inner end face of the outer hook 1, and the inner pad 5 is detachably fixed to the vertical outer end face of the inner hook 4.

[0034] The outer hook 1 includes a double-clamp horizontal hook head 1-1, a hook body 1-2, a double-clamp hook tail 1-3, an outer pad mounting seat 1-4, a limiting stop 1-5, and a reinforcing rib stop 1-6. The double-clamp hook tail 1-3 is located on the outer side above the double-clamp horizontal hook head 1-1 and is connected to it through the hook body 1-2. The three are integrally formed. A set of horizontal hook head double-clamp bolt holes 1-1-1 with front and rear passages are horizontally opened in the middle of the side wall of the double-clamp horizontal hook head 1-1. The outer rear side of the hook body 1-2 is inclined. The vertically arranged outer pad mounting seat 1-4 is fixed to the inner side of the hook body 1-2 and is perpendicular to the upper end face of the horizontal hook head 1-1. The limiting stop 1-5 spans across and is fixed to the upper end face of the double-clamp hook tail 1-3 and is adjacent to the outer pad mounting seat 1-4. The reinforcing rib stop 1-6... Block 1-6 spans across and is fixed to the inclined surface on the outer rear side of hook body 1-2; multiple stud through holes 1-4-1 are provided on the vertical front end face of the outer pad block mounting seat 1-4, and multiple pad studs 6-2 are provided on the rear end face of the outer pad block 6. The pad studs 6-2 pass through the corresponding stud through holes 1-4-1 and are locked with nuts to fix the outer pad block 6 to the front end of the outer pad block mounting seat 1-4; the tail end of the double-clamp hook tail 1-3 is provided with a set of double-clamp pivot bolt holes 1-3-2 that are connected from front to back. The pivot bolt 2 is threaded to the two double-clamp pivot bolt holes 1-3-2 respectively to form the hook tail pivot seat. The lower end of the shackle connecting rod 7-2 is inserted into the double-clamp slit of the double-clamp hook tail 1-3 and is rotatably connected to the hook tail pivot seat through the pivot bolt 2.

[0035] The inner hook 4 is a C-shaped steel plate with a horizontal lateral slot 4-3 in the middle. The upper half of the C-shape of the inner hook 4 is the inner pad mounting base 4-1, and the lower half of the C-shape of the inner hook 4 is the inner hook insertion screw hole plate 4-2. The inner hook insertion screw hole plate 4-2 has multiple inner hook insertion screw hole groups 4-2-1. The horizontal hook head double clamp plate bolt holes 1-1-1 and the inner hook insertion screw hole groups 4-2-1 are fixedly connected by at least two bolt fasteners 3, and the double clamp plate The upper end face of the horizontal hook 1-1 is parallel to the lateral slot 4-3; a horizontal rectangular positioning clamp 4-4 is welded and fixed to the upper and lower side walls of the slot in the middle section of the lateral slot 4-3, respectively. The two rectangular positioning clamps 4-4 are parallel to each other and perpendicular to the side wall end face of the inner hook 4. The distance between the two rectangular positioning clamps 4-4 is D2 = 105%D1; the rear end of the inner pad 5 is fixed to the longitudinal through hole array on the inner pad mounting base 4-1 in a detachable manner by multiple bolt fasteners 3.

[0036] The front end face of the inner pad 5 is the inner clamping pad 5-1, and the front end face of the outer pad 6 is the outer clamping pad 6-1. The end faces of the inner clamping pad 5-1 and the outer clamping pad 6-1 are parallel and the width of the slit P between them is D3, and D3 = 105%D1.

[0037] The angle β between the slit P and the end face of the rectangular positioning clamp 4-4 is ， And β ＝ α ； The length of the upper end face of the horizontal hook 1-1 is L2, and 105%L1≤L2≤110%L1; the slot length of the lateral slot 4-3 is the same as the length of the upper end face of the horizontal hook 1-1; the height of the inner pad 5 is H2, the height of the outer pad 6 is H3, H2=H3, and 70%H1≤H2≤90%H1.

[0038] When using the hook device for lifting the base frame side beams of the present invention to lift the base frame, inner pads 5 and outer pads 6 of corresponding models are prefabricated according to the size and shape of the base frame side beams of different models. Both of them are made of anti-slip nylon material.

[0039] When the base frame side beam is a straight beam, the dimensional parameters of the inner clamping pad 5-1 and the outer clamping pad 6-1 under the corresponding dimensional chain constraint conditions are made according to the inner wall spacing value H1 and the steel plate thickness D1 of the straight beam. At this time, the inclination angle β=α=90°. When the base frame side beam is an inclined beam, the inclination angle β=α is maintained, and the dimensional parameters of the inner clamping pad 5-1 and the outer clamping pad 6-1 under the corresponding dimensional chain constraint conditions are made according to the actual dimensional parameters of the inclined beam. The width D3 of the slit P can also be adaptively adjusted by changing the matching sequence of the holes of the horizontal hook double clamping plate bolt hole 1-1-1 and the inner hook insertion bolt hole group 4-2-1.

[0040] When horizontally hoisting a stainless steel base frame, such as Figures 11 to 15 As shown, the two hook devices of the present invention for the side beams of the base frame are respectively connected to the wire sling 8 of the overhead crane to form a complete set of horizontal hoisting slings. In use, the two rectangular positioning clamps 4-4 on the middle section of the side slot 4-3 clamp the straight side beam flange G1-1 or the inclined side beam flange G2-1, so that the inner clamping pad 5-1 is embedded between the inner sections of the upper and lower flanges of the side beam, and the inner clamping pad 5-1 and the outer clamping pad 6-1 clamp and position the straight side beam web surface G1-2 or the inclined side beam web surface G2-2 from the inner and outer sides respectively.

[0041] Using the same method, and simultaneously employing two sets of overhead cranes and two sets of the horizontal hoisting slings of this invention, reliable clamping and horizontal hoisting of the four corners of any straight-sided beam underframe or inclined beam underframe can be achieved.

Claims

1. A hook device for a base frame side beam, comprising a sling shackle mechanism (7) and a wire sling (8), wherein the shackle mechanism (7) comprises a shackle (7-1) and a shackle connecting rod (7-2) pivotally connected to each other, and the end of the wire sling (8) is suspended in connection with the buckle of the shackle (7-1); characterized in that: The hook device also includes an outer hook (1), a pivot bolt (2), multiple bolt fasteners (3), an inner hook (4), an inner pad (5), and an outer pad (6). The lower parts of the outer hook (1) and the inner hook (4) are fixedly connected by multiple bolt fasteners (3). The upper end of the outer hook (1) is rotatably connected to the lower end of the shackle connecting rod (7-2) by the pivot bolt (2). The outer pad (6) is detachably fixed to the vertical inner end face of the outer hook (1), and the inner pad (5) is detachably fixed to the vertical outer end face of the inner hook (4). The outer hook (1) includes a double-clamp horizontal hook head (1-1), a hook body (1-2), a double-clamp hook tail (1-3), an outer pad mounting base (1-4), a limiting block (1-5), and a reinforcing rib block (1-6). The double-clamp hook tail (1-3) is located on the outer side above the double-clamp horizontal hook head (1-1) and is connected to each other through the hook body (1-2). The three are integrally formed; the side of the double-clamp horizontal hook head (1-1) A set of horizontal hook head double-clamp bolt holes (1-1-1) is horizontally opened in the middle of the wall, running from front to back; the outer rear side of the hook body (1-2) is inclined, and the vertically arranged outer pad mounting seat (1-4) is fixed to the inner side of the hook body (1-2) and perpendicular to the upper end face of the horizontal hook head (1-1); the limiting block (1-5) spans across and is fixed to the upper end face of the double-clamp hook tail (1-3) and is adjacent to the outer pad mounting seat (1-4); The reinforcing rib block (1-6) spans across and is fixedly connected to the inclined surface on the rear side of the hook body (1-2); the vertical front end face of the outer pad block mounting base (1-4) is provided with multiple stud through holes (1-4-1), and the rear end face of the outer pad block (6) is provided with multiple pad studs (6-2). The pad studs (6-2) pass through the corresponding stud through holes (1-4-1) and are locked with nuts to fix the outer pad block (6) to the front end of the outer pad block mounting base (1-4); the tail end of the double-clamp hook tail (1-3) is provided with a set of double-clamp pivot bolt holes (1-3-2) that are connected from front to back. The pivot bolt (2) is threadedly connected to the two double-clamp pivot bolt holes (1-3-2) to form the hook tail pivot seat. The lower end of the shackle connecting rod (7-2) is inserted into the double-clamp slit of the double-clamp hook tail (1-3) and is rotatably connected to the hook tail pivot seat through the pivot bolt (2). The inner hook (4) is a C-shaped steel plate with a horizontal lateral groove (4-3) in the middle. The upper half of the C-shape of the inner hook (4) is the inner pad mounting seat (4-1), and the lower half of the C-shape of the inner hook (4) is the inner hook insertion screw hole plate (4-2). Multiple inner hook insertion screw hole groups (4-2-1) are opened on the inner hook insertion screw hole plate (4-2). The horizontal hook head double clamp plate bolt hole (1-1-1) and the inner hook insertion screw hole group (4-2-1) are fixedly connected by at least two bolt fasteners (3), and the double clamp plate horizontal hook head ( 1-1) The upper end face is parallel to the side slot (4-3); a horizontal rectangular positioning clamp (4-4) is welded and fixed to the upper and lower side walls of the middle section of the side slot (4-3). The two rectangular positioning clamps (4-4) are parallel to each other and perpendicular to the side wall end face of the inner hook (4). The distance between the two rectangular positioning clamps (4-4) is D2=105%D1, where D1 is the thickness of the steel plate of the base frame side beam. The rear end of the inner pad (5) is fixed to the longitudinal through hole array on the inner pad mounting seat (4-1) in a detachable manner through multiple bolt fasteners (3).

2. The hook device for the side beam of the base frame as described in claim 1, characterized in that: The front end face of the inner pad (5) is the inner clamping pad (5-1), and the front end face of the outer pad (6) is the outer clamping pad (6-1). The end faces of the inner clamping pad (5-1) and the outer clamping pad (6-1) are parallel and the slit (P) between them is D3, and D3 = 105%D1.

3. The hook device for the side beam of the base frame as described in claim 2, characterized in that: The angle between the slit (P) and the end face of the rectangular positioning clamp (4-4) is β, and β=α, where α is the acute angle between the web surface of the inclined beam and the flange surface of the inclined beam of the base frame side beam; the length of the upper end face of the horizontal hook (1-1) is L2, and 105%L1≤L2≤110%L1, where L1 is the flange width of the straight beam flange and the inclined beam flange of the base frame side beam; the slot length of the lateral slot (4-3) is the same as the length of the upper end face of the horizontal hook (1-1); the height of the inner pad (5) is H2, and the height of the outer pad (6) is H3, where H2=H3, and 70%H1≤H2≤90%H1, where H1 is the distance between the inner walls of the upper and lower parallel straight beam flanges of the base frame side beam.

Images