A short coupler and a buffer device

Abstract

The present invention discloses a short coupler and a buffer device in the field of coupler buffer technology, including a short coupler, including a hook head, a hook tongue arranged in one end of the hook head, and a pin shaft and a lifting pin vertically plugged into the connection position between the hook head and the hook tongue, and the pin shaft and the lifting pin are staggered and do not overlap on the same vertical axis. The present invention combines the coupler and the buffer device design together to shorten the distance between the mine cars and meet the needs of automatic ore loading without leakage; the coupler has a large swing angle, which is conducive to smooth passage through the curve; the coupler has high stability and reliability after being connected and tightened, and can withstand the impact and vibration during the operation of the mine car; the rubber ring has the advantages of easy installation and low price.

Description

Technical Field

[0001] The invention relates to the technical field of coupler buffering, and in particular to a short coupler and a buffering device. Background Art

[0002] The coupler is a key component of a mine car. Its main function is to achieve the connection between the locomotive and the mine car, and between the mine cars. Through the coupler, the vehicles can not only be tightly connected, but also effectively transmit traction and impact force. In the mine transportation system, the role of the coupler is crucial. It not only ensures the overall traction and drive of the train, but also maintains an appropriate safety distance between the mine cars to prevent collisions due to too close distances.

[0003] In ground and underground rail transportation systems, the coupler buffer device is one of the most important components. It is used to mitigate the longitudinal impact and vibration caused by changes in locomotive traction during train operation or collisions between vehicles during starting, braking and shunting operations. The buffer device has the function of dissipating the impact and vibration between vehicles, thereby reducing the destructive effects on the vehicle structure and loaded cargo.

[0004] In the prior art, the length of the coupler and the buffer device is too long, resulting in a large distance between the mine cars, and the requirement of continuous loading of ore by the mine cars cannot be met. In addition, the coupler and the buffer device are independent structures, and the structural design is not compact. Summary of the invention

[0005] In view of the above-mentioned problems that the existing coupler and buffer device are not compact in structure and the distance between the mine cars is large, a short coupler and buffer device are proposed to solve such problems.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a short coupler, including a hook head, a hook tongue arranged in one end of the hook head, and a pin shaft and a lifting pin vertically inserted in the connection position between the hook head and the hook tongue, and the pin shaft and the lifting pin are staggered and do not overlap on the same vertical axis.

[0007] As a preferred solution of the short coupler described in the present invention, one side of the hook head is in a "C"-shaped structure, the top of the "C"-shaped structure is in an inclined upward structure, a hook head tail is fixedly provided on the left side of the "C"-shaped structure, a C hole is provided in the vertical direction at the connection between the hook head tail and the hook head, an inner abutment surface of the hook head is provided on the inner side of the "C"-shaped structure, and two groups of non-overlapping D holes and E holes are provided at the lower end of the "C"-shaped structure.

[0008] As a preferred embodiment of the short coupler described in the present invention, the hook tongue is a "C"-shaped structure whose size is smaller than the hook head, the E hole and the D hole opened on the hook head extend vertically to the top of the hook tongue and penetrate the top of the hook tongue, and the pin shaft and the lifting pin are respectively inserted into the D hole and the E hole to connect the hook head and the hook tongue.

[0009] As a preferred solution of the short coupler of the present invention, the outer end surface of the "C"-shaped structure of the hook tongue is the outer contact surface of the hook tongue, and the inner end surface is the inner contact surface of the hook tongue.

[0010] A buffer device, a short coupler, also includes two groups of hook tails used in pairs, a hook body is installed inside the hook tail, and the top of the hook body protrudes outward to the outside of the hook tail, two groups of baffles are arranged inside the hook body and are symmetrical in a "V" shape, a connecting pin is vertically inserted into the protruding part of the top of the hook body, and four groups of rubber rings are sleeved on the outer wall of the hook body, and the rubber rings are located between the hook tail and the hook body.

[0011] As a preferred solution of the buffer device described in the present invention, the hook tail is a high-manganese casting, and two groups are used in pairs, three A holes are opened in the vertical direction on both sides of each group of hook tails, two B holes are opened in the horizontal direction on both sides, and bolts are inserted in each group of A holes, four groups of hook grooves are opened on both sides of the inside of the hook tail, and the outer rings of the four groups of rubber rings are all located in the hook grooves.

[0012] As a preferred embodiment of the buffer device of the present invention, the hook body is also a high manganese casting, four groups of grooves are opened on the outer wall of the hook body, four groups of rubber rings are correspondingly sleeved in the four groups of grooves, screw holes are obliquely opened on both sides of the hook body, an F hole is opened on the outwardly protruding part of the top of the hook body, and the connecting pin is inserted into the F hole, as well as an empty groove opened inside the hook body, and a hook head is horizontally inserted in the empty groove.

[0013] As a preferred solution of the buffer device described in the present invention, wherein: the tail of the hook head fixedly arranged on the left side of the hook head extends into the empty slot, and the tail of the hook head passes through between the two sets of baffles, and the connecting pin is inserted into the C hole to connect the hook head with the hook body.

[0014] As a preferred solution of the buffer device described in the present invention, the baffle is made of polyurethane material, two groups of baffles are installed in the empty groove, the outer side of each group of baffles is connected with bolts, and the bolts pass through the baffles and are fixed to the screw holes on both sides of the hook body.

[0015] As a preferred solution of the buffer device of the present invention, the rubber ring is made of high-quality quadrilateral rubber with large chamfers, and the inner and outer dimensions of the rubber ring are respectively matched with the hook groove and the groove.

[0016] Beneficial effects of the present invention:

[0017] 1. The integrated design of the hook and the buffer device shortens the distance between the mine cars, ensures the structural design of the front and rear overlap between the mine cars, meets the requirements of continuous ore loading, and reduces the bending moment of the mine car wall panel.

[0018] 2. The coupler has a large swing angle, and the baffle design greatly alleviates the swing force of the coupler and can ensure that the coupler is centered as much as possible.

[0019] 3. After the mine cars are connected, the traction force is transferred to the rubber ring by pulling the hook tongue and hook head against each other, thus buffering the traction impact; when the hooks collide with each other, the hook tongue presses against the hook head, thus transmitting the collision force to the rubber ring, thus buffering the collision impact.

[0020] 4. The rubber ring has high elasticity and viscoelasticity, good seismic isolation effect, the shape can be freely selected, and the hardness can be adjusted through formula design to meet the stiffness and strength requirements in different directions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0022] Figure 1 The present invention provides a schematic diagram of the main structure of a short coupler and a buffer device.

[0023] Figure 2 The present invention provides a schematic diagram of a top view of the structure of a short coupler and a buffer device.

[0024] Figure 3 The present invention provides a schematic cross-sectional structure diagram of a short coupler and a buffer device.

[0025] Figure 4 The present invention is a schematic structural diagram of a short coupler and a buffer device coupler when they are connected.

[0026] Figure 5 This is a schematic diagram of the hook tail structure provided by the present invention.

[0027] Figure 6 This is a schematic diagram of the hook body structure provided by the present invention.

[0028] Figure 7 This is a schematic diagram of the hook head structure provided by the present invention.

[0029] Figure 8 This is a schematic diagram of the hook tongue structure provided by the present invention.

[0030] Fig. 9 This is a schematic diagram of the cross-sectional structure of the rubber ring provided by the present invention.

[0031] Figure numerals: 1. hook tail; 11. A hole; 12. B hole; 13. hook groove; 2. connecting pin; 3. hook head; 31. hook head tail; 32. hook head inner abutment surface; 33. C hole; 34. D hole; 35. E hole; 4. hook tongue; 41. hook tongue outer contact surface; 42. hook tongue inner contact surface; 5. pin shaft; 6. hook body; 61. groove; 62. screw hole; 63. F hole; 64. empty groove; 7. lifting pin; 8. baffle; 9. rubber ring; 10. bolt; 4′, auxiliary hook tongue. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Reference Figures 1 to 8 The present invention discloses a short coupler and a buffer device, which consists of a short coupler and a buffer device. The coupler consists of a hook head 3, a hook tongue 4, a pin 5, and a lifting pin 7. The buffer device consists of a hook tail 1, a connecting pin 2, a hook body 6, a baffle 8, a rubber ring 9, and a connecting bolt 10. The short coupler and the buffer device are tightly installed together and are integrated. The distance between the mine cars is shortened, and the structural design of the front and rear overlap between the mine cars is ensured to achieve the requirement of continuous ore loading. At the same time, the bending moment of the mine car wall panel is reduced. When in use, the device generally has two groups, which are respectively installed on two groups of mine cars to be connected, and the two devices are used in conjunction with each other.

[0035] Among them, a short coupler includes a hook head 3, a hook tongue 4 arranged in one end of the hook head 3, and a pin shaft 5 and a lifting pin 7 vertically inserted into the connection position between the hook head 3 and the hook tongue 4, and the pin shaft 5 and the lifting pin 7 are staggered and do not overlap on the same vertical axis.

[0036] Among them, one side of the hook head 3 is in a "C"-shaped structure, the top of the "C"-shaped structure is in an inclined upward structure, a hook tail 31 is fixedly provided on the left side of the "C"-shaped structure, a C hole 33 is provided in the vertical direction at the connection between the hook tail 31 and the hook head 3, and a hook inner abutment surface 32 is provided on the inner side of the "C"-shaped structure, and two sets of non-overlapping D holes 34 and E holes 35 are provided at the lower end of the "C"-shaped structure.

[0037] Among them, the hook tongue 4 is a "C"-shaped structure with a size smaller than the hook head 3. The E hole 35 and the D hole 34 opened on the hook head 3 extend vertically to the top of the hook tongue 4 and penetrate the top of the hook tongue 4. The pin 5 and the lifting pin 7 are respectively inserted into the D hole 34 and the E hole 35 to connect the hook head 3 and the hook tongue 4. The D hole 34 and the E hole 35 extend to the hook tongue 4 in such a way that the hook tongue 4 has the same hole groove as the D hole 34 and the E hole 35.

[0038] Furthermore, the hook head 3 and the hook tongue 4 are both castings. The hook tongue 4 is connected to the hook head 3 via the D hole 34 and the E hole 35. The pin 5 is installed in the D hole 34 to connect the hook tongue 4 and the hook head 3 together. The lifting pin 7 is installed in the E hole 35 for lifting the hook when the coupler is separated.

[0039] During use, the main function of the short coupler is to connect, uncouple and set the distance between the mine cars.

[0040] Installation reference for short coupler Figure 3 and Figure 6 : The connecting pin 2 connects the F hole 63 of the hook body 6 with the C hole 33 of the hook head 3, and the pin shaft 5 is installed in the D hole 34 connected between the hook tongue 4 and the hook head 3 to fix the hook tongue 4 and the hook head 3 together; the lifting pin 7 is used to connect the E hole 35 connected between the hook tongue 4 and the hook head 3.

[0041] Mine car coupling and separation, refer to Figure 4 :

[0042] Before the mine car is connected, the lifting pin 7 must be pulled out from the E hole 35; when the coupler is connected, the outer contact surface of the hook tongue 4 hits the outer contact surface of the auxiliary hook tongue 4' of the opposite hook, and the hook tongue 4 and the auxiliary hook tongue 4' are like Figure 4 In the state shown (the auxiliary hook tongue 4' structure here is the same as the hook tongue 4, the difference is that the two are installed on different mine cars), after the mine cars are connected, the lifting pin 7 is inserted into the E hole 35 of the hook tongue 4 and the hook head 3; if the two mine cars are to be separated, the handles on both sides of the mine car hook lifting device are pulled to pull the lifting pin 7 out of the E hole 35.

[0043] Furthermore, the outer end surface of the “C”-shaped structure of the hook tongue 4 is a hook tongue outer contact surface 41 , and the inner end surface is a hook tongue inner contact surface 42 .

[0044] During use, the inner contact surface 42 of the hook tongue is a negative angle plane. When running in a straight line or a curve, the inner contact surfaces of the two hook tongues 4 are pulled tighter and tighter, which can withstand a larger traction force, and the inner contact surface and the C holes 33 of the two hooks are basically on the same horizontal line;

[0045] The outer contact surface 41 of the hook tongue is an arc surface. When the two hooks collide, the outer contact surface 41 of the hook tongue and the outer contact surface of the auxiliary hook tongue 4' are smoothly cut into each other. After the two hooks are connected, the outer contact surface 41 of the hook tongue and the inner arc surface of the hook head 3 are mutually tangent, so that the hook tongue 4 and the hook head 3 can swing smoothly without jamming when the mine workshop runs in a straight line or a curve.

[0046] A buffer device includes a short coupler, and also includes two groups of hook tails 1 used in pairs, a hook body 6 is installed inside the hook tail 1, and the top of the hook body 6 protrudes outward to the outside of the hook tail 1, two groups of baffles 8 are arranged inside the hook body 6 and are symmetrical in a "V" shape, a connecting pin 2 is vertically inserted into the protruding part of the top of the hook body 6, and four groups of rubber rings 9 are sleeved on the outer wall of the hook body 6, and the rubber ring 9 is located between the hook tail 1 and the hook body 6.

[0047] Among them, the hook tail 1 is a high-manganese casting, and two groups are used in pairs. Three A holes 11 are opened in the vertical direction on both sides of each group of hook tails 1, and two B holes 12 are opened in the horizontal direction on both sides. Bolts 10 are inserted in each group of A holes 11, and four groups of hook grooves 13 are opened on both sides of the inside of the hook tail 1, and the outer rings of the four groups of rubber rings 9 are all located in the hook grooves 13. The bolts 10 are M16X65 bolts.

[0048] Among them, the hook body 6 is also a high-manganese casting. Four groups of grooves 61 are opened on the outer wall of the hook body 6. Four groups of rubber rings 9 are correspondingly sleeved in the four groups of grooves 61. Screw holes 62 are obliquely opened on both sides of the hook body 6. An F hole 63 is opened on the part protruding outward at the top of the hook body 6, and the connecting pin 2 is inserted into the F hole 63, as well as an empty groove 64 opened inside the hook body 6, and the hook head 3 is horizontally inserted in the empty groove 64.

[0049] During use, the groove 61 provides a skeleton support for the rubber ring 9, which can withstand the traction and impact force during the operation of the mine car; the two groups of screw holes 62 provide fixing points for the baffle 8; the F hole 63 provides a swing fulcrum for the hook head 3; and the empty slot 64 provides space for the tail installation and swing of the hook head 3.

[0050] Furthermore, the hook head tail portion 31 fixedly arranged on the left side of the hook head 3 extends into the empty slot 64 , and the hook head tail portion 31 passes through between the two sets of baffles 8 , and the connecting pin 2 is inserted into the C hole 33 to connect the hook head 3 with the hook body 6 .

[0051] The baffles 8 are made of polyurethane material, and two groups of baffles 8 are installed in the empty grooves 64 . The outer side of each group of baffles 8 is connected with bolts, and the bolts pass through the baffles 8 and are fixed to the screw holes 62 on both sides of the hook body 6 .

[0052] During use, the two sets of baffles 8 are fixed to the screw holes 62 on both sides of the hook body 6 near the head with bolts. When the mine car swings on a curve, the baffles 8 on both sides contact the tail of the hook head 3 to play a limiting and buffering role. The maximum swing angle can reach ±20°. The large swing angle of the hook, combined with the design of the baffle 8, greatly alleviates the swing force of the hook and can ensure the hook is centered as much as possible.

[0053] The rubber ring 9 is made of a quadrilateral high-quality rubber with a large chamfer, and the inner and outer dimensions of the rubber ring 9 are matched and adapted to the hook groove 13 and the groove 61 respectively.

[0054] During use, the rubber ring 9 is used as a compression elastic element to alleviate the traction and impact force. At the same time, it absorbs the impact energy by friction and damping during the deformation of the elastic element, thus playing a buffering role.

[0055] When using this buffer device with a short coupler for traction, Figure 3 and Figure 4 The inner contact surface 42 of the hook tongue is subjected to traction, and the hook head 3 is pulled through the connection between the pin shaft 5 and the lifting pin 7, and the hook head 3 pulls the hook body 6 through the connecting pin 2, and the hook body 6 compresses the rubber ring 9, and the rubber ring 9 transmits the traction force to the hook tail 1, and the hook tail 1 transmits the traction force to the mine car coupler frame through a plurality of B holes 12;

[0056] During collision, the outer contact surface of the auxiliary hook tongue 4' hits the inner contact surface 32 of the hook head, and the hook head 3 drives the hook body 6 to compress the rubber ring 9 through the connecting pin 2. The rubber ring 9 transmits the impact force to the hook tail 1, and the hook tail 1 transmits the traction force to the mine car coupler frame through a plurality of B holes 12. The rubber ring 9 plays a buffering and shock-absorbing function during traction and collision.

[0057] The remaining structures are the same as those of Example 1.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An assembly consisting of a short coupler and a buffer device, comprising a hook head (3), characterized in that: It also includes a hook tongue (4) disposed in one end of the hook head (3), and a pin shaft (5) and a lifting pin (7) vertically inserted into the connection position between the hook head (3) and the hook tongue (4), wherein the pin shaft (5) and the lifting pin (7) are staggered and do not overlap on the same vertical axis. It also includes a hook tail (1) used in pairs, a hook body (6) installed inside the hook tail (1), and the top of the hook body (6) protrudes outward to the outside of the hook tail (1), two sets of baffles (8) arranged inside the hook body (6) and in a "V"-shaped symmetrical state, a connecting pin (2) vertically inserted into the protruding part of the top of the hook body (6), and four sets of rubber rings (9) sleeved on the outer wall of the hook body (6), and the rubber ring (9) is located between the hook tail (1) and the hook body (6); Screw holes (62) are obliquely provided on both sides of the hook body (6), an F hole (63) is provided on the outwardly protruding portion of the top of the hook body (6), and the connecting pin (2) is inserted into the F hole (63), as well as an empty slot (64) provided inside the hook body (6), and a hook head (3) is transversely inserted into the empty slot (64); The two sets of baffles (8) are installed in the empty slot (64), and the baffles (8) on both sides are in contact with the tail of the hook head (3), and the maximum swing angle can reach ±20°; One side of the hook head (3) is in a "C"-shaped structure, the top of the "C"-shaped structure is in an inclined upward structure, a hook head tail (31) is fixedly provided on the left side of the "C"-shaped structure, a C hole (33) is provided in a vertical direction at the connection between the hook head tail (31) and the hook head (3), the hook head tail (31) fixedly provided on the left side of the hook head (3) extends into the empty slot (64), and the hook head tail (31) passes through between the two sets of baffles (8), and the connecting pin (2) is inserted into the C hole (33) to connect the hook head (3) with the hook body (6).

2. The assembly consisting of a short coupler and a buffer device according to claim 1, characterized in that: The inner side of the "C"-shaped structure is provided with a hook head inner abutment surface (32), and the lower end of the "C"-shaped structure is provided with two groups of non-overlapping D holes (34) and E holes (35).

3. The assembly consisting of a short coupler and a buffer device according to claim 1, characterized in that: The hook tongue (4) is a "C"-shaped structure smaller in size than the hook head (3); the E hole (35) and the D hole (34) provided on the hook head (3) extend vertically to the top of the hook tongue (4) and penetrate the top of the hook tongue (4); the pin shaft (5) and the lifting pin (7) are respectively inserted into the D hole (34) and the E hole (35) to connect the hook head (3) and the hook tongue (4).

4. The assembly consisting of a short coupler and a buffer device according to claim 1, characterized in that: include, The outer end surface of the "C"-shaped structure of the hook tongue (4) is a hook tongue outer contact surface (41), and the inner end surface is a hook tongue inner contact surface (42). The hook tongue inner contact surface (42) is a negative angle plane, and the hook tongue outer contact surface (41) is an arc surface.

5. The assembly consisting of a short coupler and a buffer device according to claim 1, characterized in that: The hook tail (1) is a high-strength casting and is used in pairs. Three A holes (11) are provided on both sides of each hook tail (1) in the vertical direction, and two B holes (12) are provided on both sides in the horizontal direction. A bolt (10) is inserted into each group of A holes (11). Four groups of hook grooves (13) are provided on both sides of the interior of the hook tail (1), and the outer rings of the four groups of rubber rings (9) are located in the hook grooves (13).

6. The assembly of the short coupler and the buffer device according to claim 1, characterized in that: The hook body (6) is also a high-strength casting. Four groups of grooves (61) are opened on the outer wall of the hook body (6). Four groups of rubber rings (9) are correspondingly sleeved in the four groups of grooves (61).

7. The assembly consisting of a short coupler and a buffer device according to claim 1, characterized in that: The baffles (8) are made of polyurethane material, and bolts are connected to the outer sides of each set of baffles (8), and the bolts pass through the baffles (8) and are fixed to the screw holes (62) on both sides of the hook body (6).

8. The assembly consisting of a short coupler and a buffer device according to claim 1, characterized in that: The rubber ring (9) is made of a quadrilateral rubber with a large chamfer, and the inner and outer dimensions of the rubber ring (9) are respectively matched and adapted to the hook groove (13) and the groove (61).

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