Mining wrecker, counterweight device and use method

Abstract

The counterweight device is used for being installed on the front lower portion of a frame front supporting assembly and providing vertical loads for front wheels and comprises a counterweight support, a counterweight block, a pin shaft, a buffering cushion plate and a gap adjusting gasket, the counterweight support is provided with a first through hole, the gravity center of the counterweight support is located in front of the first through hole, the pin shaft is installed in the first through hole, and the gap adjusting gasket is arranged on the counterweight block. The balancing weight is fixed above the front part of the balancing weight bracket and is fixed at the front part of the first through hole; the buffering base plate is connected above the rear portion of the balance weight support, and the gap adjusting gasket is arranged on the upper portion of the buffering base plate. The invention further discloses a mining wrecker and a using method of the mining wrecker. The inclination angle of the balance weight support is adjustable, and the safety of the wrecker is effectively guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of mining vehicles, and in particular relates to a mining tow truck, a counterweight device and a use method thereof. Background Art

[0002] A mining tow truck is a vehicle specially used in open-pit mines to tow or drag mining vehicles that cannot move due to a malfunction. The rear of the mining tow truck is equipped with a locking device and a lifting device. The locking device is used to fix the front part of the faulty mining vehicle frame to the tow truck, and the lifting device lifts the front part of the faulty mining vehicle frame until the front wheels (steering wheels) are off the ground, thereby achieving reliable towing of the faulty mining vehicle.

[0003] However, due to the heavy weight of the mining vehicle, when the tow truck lifts the faulty mining vehicle, it is subjected to the reaction force of the faulty mining vehicle, which causes the center of gravity of the tow truck to move backward, resulting in the vertical load of the front wheels being reduced or even zero (the front wheels are off the ground), and the corresponding adhesion between the front wheels and the ground is reduced. Since the front wheels are also steering wheels, in order to ensure the maneuverability of the tow truck and reliable towing of the faulty mining vehicle, the front wheels of the tow truck need to maintain a certain vertical load. Summary of the Invention

[0004] The purpose of the present invention is to provide a mine tow truck, a counterweight device and a method of use. The inclination angle of the counterweight bracket is adjustable, which effectively ensures the safety of the tow truck.

[0005] To achieve the above objectives, the technical solutions used in the present invention are:

[0006] The counterweight device is used to be installed at the front and lower part of the front support assembly of the frame to provide a vertical load to the front wheel, including: a counterweight bracket, a counterweight block, a pin shaft, a buffer pad, and a gap adjustment gasket. The counterweight bracket is provided with a first through hole, the center of gravity of the counterweight bracket is located in front of the first through hole, the pin shaft is installed in the first through hole, the counterweight block is fixed above the front of the counterweight bracket, and the counterweight block is fixed in front of the first through hole; the buffer pad is connected to the upper rear of the counterweight bracket, and the gap adjustment gasket is arranged on the upper part of the buffer pad.

[0007] Preferably, the counterweight bracket includes: the counterweight device also includes: a cotter pin, a first bolt, a first nut, a second bolt, and a second nut, the counterweight bracket includes: a vertical plate, a support plate, and a mounting plate, the two vertical plates are positioned opposite to each other, the support plate is connected above the front of the two vertical plates, and the two mounting plates are respectively connected above the rear of the two vertical plates, the first through hole is arranged on the vertical plate between the support plate and the mounting plate, and the two first through holes are positioned opposite to each other; the support plate is provided with multiple second through holes, and the mounting plate is provided with multiple third through holes; the pin shaft is a stepped shaft, and a pin shaft through hole is radially arranged, the cotter pin is installed in the pin shaft through hole, the pin shaft is installed in the first through hole, the second bolt passes through the third through hole and the fifth through hole on the buffer pad and is connected with the second nut to fix the buffer pad to the mounting plate of the counterweight bracket, and the gap adjustment gasket is arranged between the buffer pad and the mounting plate; the top surface of the counterweight block is provided with multiple fourth through holes along the height direction, the first bolt passes through the fourth through hole and the second through hole and is connected with the first nut to fix the counterweight block to the support plate of the counterweight bracket.

[0008] Preferably, the vertical plate is a welded structure, including: a bottom plate and two vertical plate splits, the bottom plate is welded to the bottom of the two vertical plate splits, the vertical plate splits are respectively provided with vertical plate through holes, the two vertical plate through holes constitute a first through hole, and the vertical plate through holes of the four vertical plate splits are located on the same axis.

[0009] Preferably, the buffer pad includes: a pad and an elastic portion, the elastic portion is arranged on the top of the pad, and the pad is provided with a plurality of fifth through holes.

[0010] Preferably, the bottom surface of the counterweight block is provided with two parallel counterweight block grooves that pass through the front and back, and the top surface of the counterweight block is provided with multiple threaded holes, which are used to install the lifting rings.

[0011] A mining tow truck is provided with a front support assembly at the front of the frame, which is characterized in that the front support assembly is connected to a counterweight device, a plurality of mounting seats are provided below the front of the front support assembly, and a plurality of limit blocks are provided below the rear of the front support assembly. The mounting seats and the limit blocks are positioned relative to each other, the mounting seat is provided with a mounting seat through hole, and the pin shaft is installed in the first through hole and the mounting seat through hole.

[0012] Furthermore, two mounting seats and two limiting blocks are symmetrically arranged on both sides below the front support assembly.

[0013] Furthermore, the buffer plate contacts the limiting block.

[0014] The use of mine wrecker includes:

[0015] Move the counterweight bracket to the bottom of the front support assembly of the vehicle frame, align the mounting seat through hole of the mounting seat with the mounting seat through hole of the vertical plate, insert the pin into the first through hole and the mounting seat through hole, and install the cotter pin into the pin through hole at the small end of the pin;

[0016] By adjusting the number of gap adjustment shims between the buffer plate and the counterweight bracket mounting plate, adjust the horizontal angle of the support plate at the front of the counterweight bracket to ensure that the support plate is level, so that the mounting plate and the limit block are in contact and the support plate is level;

[0017] A lifting ring is installed in the threaded hole of the counterweight block, and the counterweight block is placed on the support plate using a lifting fixture. The first bolt passes through the fourth through hole of the counterweight block and the first through hole of the support plate and is connected to the first nut to fix the counterweight block on the support plate of the counterweight bracket.

[0018] Furthermore, the second bolt passes through the fifth through hole on the buffer plate and the third through hole on the mounting plate and is connected to the second nut to fix the buffer plate to the mounting plate of the counterweight bracket; the forklift is inserted into the counterweight block slot, the counterweight block is moved to the side of the counterweight bracket, and then the counterweight block is lifted using a sling.

[0019] The technical effects of the present invention include:

[0020] 1. According to the counterweight device and usage method of the mining tow truck of the above scheme, the counterweight bracket has a simple structure and is easy to install. The inclination angle of the counterweight bracket is adjustable, and the weight of the counterweight block can be increased or decreased according to the weight of the faulty mining vehicle being towed, effectively ensuring the safety of the tow truck.

[0021] The counterweight bracket is connected to the front support of the frame with a pin. By increasing or decreasing the thickness of the gap adjustment gasket between the buffer plate and the counterweight bracket mounting plate, the counterweight bracket can be rotated around the pin, and the angle between the front support plate of the counterweight bracket and the ground can be further adjusted to ensure that the support plate is level.

[0022] The counterweight device is used to balance the center of gravity deviation of the tow truck during operation, ensuring that the front wheels of the tow truck have sufficient vertical load, and further ensuring the maneuverability and reliability of the tow truck.

[0023] 2. The counterweight can be installed by crane or forklift, and has good adaptability to the installation equipment.

[0024] The counterweight has a threaded hole on the top for mounting a lifting ring, allowing it to be lifted by a crane. Two parallel slots running from front to back on the front of the counterweight also allow for forklift installation. The number of counterweights required can be adjusted depending on the type of vehicle being towed by the mine tow truck.

[0025] 3. The buffer pad can effectively increase the contact between the counterweight bracket and the limit block, while avoiding collision and impact on the frame.

[0026] The elastic portion of the buffer plate's upper portion is resilient, ensuring full contact between the buffer plate and the stopper below the front support of the vehicle frame. Furthermore, when the tow truck travels on bumpy roads, the counterweight bracket will experience slight swings, and the elastic portion of the buffer plate effectively absorbs energy, preventing the counterweight bracket from colliding with the vehicle frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an axonometric view of the counterweight device in the present invention in use;

[0028] Figure 2 It is a side view of the counterweight device of the present invention in use;

[0029] Figure 3 It is a partial longitudinal section view of the counterweight device of the present invention;

[0030] Figure 4 yes Figure 2 Partial cross-sectional view along the NN direction;

[0031] Figure 5 yes Figure 2 Partial cross-sectional view in the mid-SS direction;

[0032] Figure 6 is an axonometric view of the counterweight bracket of the present invention;

[0033] Figure 7 It is an axonometric view of the counterweight block of the present invention;

[0034] Figure 8 It is an axonometric view of the buffer pad in the present invention.

[0035] Description of reference numerals:

[0036] 10-frame front support assembly, 11-mounting seat, 11a-mounting seat through hole, 12-limiting block;

[0037] 20- counterweight device;

[0038] 21. Counterweight bracket, 211. Vertical plate, 211a - first through hole, 212 - Support plate, 212a - second through hole, 213 - Mounting plate, 213a - third through hole, 214 - Bottom plate;

[0039] 22-counterweight, 22a-fourth through hole, 22b-threaded hole, 22c-counterweight slot;

[0040] 23-pin; 24-cotter pin; 25-first bolt (fastening member); 26-first nut (fastening member);

[0041] 27-buffer pad, 271-pad, 271a-fifth through hole, 272-elastic portion;

[0042] 28 - gap adjustment gasket; 29 - second bolt (fastening member); 30 - second nut (fastening member).

[0043] F-Front. DETAILED DESCRIPTION

[0044] The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce the invention.

[0045] The following describes in detail the specific implementation of the counterweight device and the method of use of the mine wrecker truck according to the present invention. Figure 1 and Figure 5 In the figure, the arrow marked F shows the front of the tow truck, and the opposite direction is the rear. Accordingly, the left and right directions of the tow truck can be determined by referring to the arrow F.

[0046] like Figure 1 As shown in FIG, it is an axonometric view of the counterweight device in the present invention in use. Figure 2 FIG. 2 is a side view of the counterweight device of the present invention in use.

[0047] A mining tow truck includes: a front support assembly 10 of a vehicle frame, and a counterweight device 20;

[0048] The front support assembly 10 of the frame is arranged at the front part of the frame. A plurality of mounting seats 11 are arranged below the front part of the front support assembly 10, and a plurality of limit blocks 12 are arranged below the rear part of the front support assembly 10. The mounting seats 11 and the limit blocks 12 are positioned relative to each other; the mounting seat 11 is provided with a mounting seat through hole 11a.

[0049] The two mounting seats 11 and the two limiting blocks 12 are symmetrically arranged on both sides below the front support assembly 10 .

[0050] like Figure 3 As shown, Figure 2 The partial cross-sectional view along the NN direction shows the connection state between the counterweight bracket 21 and the mounting seat 11; Figure 4 As shown, Figure 2 A partial cross-sectional view in the SS direction shows the connection state of the counterweight bracket 21 and the mounting seat 11, and the position state of the counterweight bracket 21 and the limit block 12; Figure 5 As shown, it is an axonometric view of the counterweight bracket 21 of the present invention; Figure 6 Shown is an axonometric view of the buffer pad in the present invention.

[0051] The counterweight device 20 is installed at the front lower part of the front support assembly 10 of the frame, and is used to provide a vertical load to the front wheel; the counterweight device 20 includes: a counterweight bracket 21 and a counterweight block 22; the counterweight bracket 21 is provided with a first through hole, the counterweight block 22 is connected to the upper front part of the counterweight bracket 21, the counterweight block 22 is located in front of the first through hole, and the counterweight bracket 21 is connected to the bottom of the mounting seat 11.

[0052] In this preferred embodiment, the center of gravity of the counterweight bracket 21 is in front of the first through hole 211 a.

[0053] In this preferred embodiment, the counterweight device 20 further includes: a pin 23, a cotter pin 24, a first bolt 25, a first nut 26, a buffer plate 27, a gap adjustment washer 28, a second bolt 29, and a second nut 30; the counterweight bracket 21 includes: a vertical plate 211, a support plate 212, and a mounting plate 213. The two vertical plates 211 are positioned opposite each other, the support plate 212 is connected to the front and upper parts of the two vertical plates 211, and the two mounting plates 213 are respectively connected to the rear and upper parts of the two vertical plates 211. The vertical plate 211 between the support plate 212 and the mounting plate 213 is provided with a first through hole, and the two first through holes are positioned opposite each other. The support plate 212 is provided with a plurality of second through holes 212a, and the mounting plate 213 is provided with a plurality of third through holes 213a.

[0054] In this preferred embodiment, the vertical plate 211 is a welded structure, comprising two vertical plate segments and a base plate 214. The base plate 214 is connected (welded) to the bottom of the two vertical plate segments. Each vertical plate segment is provided with a through-hole segment, and the two through-hole segments form a first through-hole. The vertical plate through-holes of the four vertical plate segments are located on the same axis. The support plate 212 and mounting plate 213 are rectangular plates. The support plate 212 is provided with a plurality of four second through-holes 212a, and the mounting plate 213 is provided with six third through-holes 213a.

[0055] The pin shaft 23 is a stepped shaft, and a pin shaft through hole is radially provided at its small end. The pin shaft 23 is passed through the first through hole and the mounting seat through hole 11 a , and the cotter pin 24 is passed through the pin shaft through hole.

[0056] When the front portion of the counterweight bracket 21 is installed, the pin 23 is inserted into the first through-hole in the upright plate 211 and the mounting seat through-hole 11a in the mounting seat 11. The cotter pin 24 is installed in the pin through-hole at the small end of the pin 23 to axially limit the pin 23. The counterweight bracket 21 is connected to the front support assembly 10 of the vehicle frame via the pin 23 so that it can rotate about the pin 23.

[0057] Since the connection type of the two sets of vertical plates 211 of the counterweight bracket 21 and the two mounting seats 11 of the front support assembly 10 of the vehicle frame adopts the same structure, only one side is used as an example in the above description.

[0058] The buffer pad 27 includes: a pad 271 and an elastic part 272. The elastic part 272 is arranged on the top of the pad 271. The pad 271 is provided with multiple (6) fifth through holes 271a. The pad 271 is a rectangular plate. The elastic part 272 is a rubber block with a trapezoidal cross-section. The pad 271 and the elastic part 272 are connected as a whole by vulcanization.

[0059] The elastic portion 272 on the upper portion of the buffer plate 27 is resilient and ensures that the buffer plate 27 is in full contact with the stopper 12 below the front support of the vehicle frame. Furthermore, when the tow truck is traveling on bumpy roads, the counterweight bracket 21 may swing slightly. The elastic portion 272 of the buffer plate 27 can effectively absorb energy, preventing the counterweight bracket 21 from colliding with the vehicle frame.

[0060] When the rear portion of the counterweight bracket 21 is installed, the second bolt 29 passes through the fifth through-hole 271a of the buffer plate 27 and the third through-hole 213a of the mounting plate 213, and is connected to the second nut 30, thereby integrally fixing the buffer plate 27 to the mounting plate 213 of the counterweight bracket 21. The gap adjustment washer 28 is disposed between the buffer plate 27 and the mounting plate 213.

[0061] Since the center of gravity of the counterweight bracket 21 is in front of the first through hole 211 a of its vertical plate 211 , after the counterweight bracket 21 is installed, the buffer plate 27 contacts the limit block 12 below the frame front support assembly 10 .

[0062] Since the two mounting plates 213 of the counterweight bracket 21 have the same contact form with the two limit blocks 12 of the vehicle frame front support assembly 10 , only one side is used as an example in the above description.

[0063] like Figure 7 As shown, it is a partial longitudinal section view of the counterweight device of the present invention, showing the connection state of the counterweight block 22 and the counterweight bracket 21; Figure 8 Shown is an axonometric view of the counterweight block of the present invention.

[0064] The counterweight block 22 is a rectangular block with multiple (4) fourth through holes 22a provided on the top surface along the height direction. The first bolt 25 passes through the fourth through hole 22a of the counterweight block 22 and the second through hole 212a of the support plate 212 and is connected to the first nut 26 to fix the counterweight block 22 on the support plate 212 of the counterweight bracket 21.

[0065] In order to improve the installation stability of multiple counterweight blocks 22, two parallel counterweight block grooves 22c are provided on the bottom surface of the counterweight block 22, and multiple (4) threaded holes 22b are provided on the top surface of the counterweight block 22, and the threaded holes 22b are installed with lifting rings.

[0066] The lifting eye mounted on threaded hole 22a is used to lift counterweight 22 with a crane. The two parallel counterweight slots 22c extending front to back of counterweight 22 allow for installation using a forklift. Depending on the type of vehicle being towed by the mine tow truck, the number of counterweights 22 required can be adjusted. Once installed, the weight of the front of the tow truck will be significantly increased.

[0067] The method of using the counterweight device of a mine wrecker includes:

[0068] Step 1: Move the counterweight bracket 21 to the bottom of the front support assembly 10 of the vehicle frame. Align the mounting seat through hole 11a of the mounting seat 11 with the mounting seat through hole 11a of the vertical plate 211. Insert the pin 23 into the first through hole and the mounting seat through hole 11a. Install the cotter pin 24 into the pin through hole at the small end of the pin 23.

[0069] Step 2: Adjust the horizontal angle of the front support plate 212 of the counterweight bracket 21 by increasing or decreasing the number of gap adjustment shims 28 between the buffer plate 27 and the counterweight bracket mounting plate 213 to ensure that the support plate 212 is level, so that the mounting plate 213 and the limit block 12 are in contact and the support plate 212 is level;

[0070] Step 3: The second bolt 29 passes through the fifth through hole 271a on the buffer plate 27 and the third through hole 213a on the mounting plate 213 and is connected to the second nut 30 to fix the buffer plate 27 to the mounting plate 213 of the counterweight bracket 21;

[0071] Step 4: Install a lifting ring in the threaded hole 22a of the counterweight 22, use a sling to place the counterweight 22 on the support plate 212, and connect the first bolt 25 through the fourth through hole 22a of the counterweight 22 and the first through hole of the support plate 212 with the first nut 26 to fix the counterweight 22 on the support plate 212 of the counterweight bracket 21.

[0072] If short-distance transportation is required, a forklift is inserted into the counterweight slot 22c, the counterweight 22 is moved to the side of the counterweight bracket 21, and then hoisted using a hoist.

[0073] According to the counterweight device 20 and method of use of a mining tow truck of the above scheme, the counterweight bracket 21 has a simple structure and is flexibly connected to the front support of the vehicle frame, making it easy to install. The inclination angle of the bracket 21 is adjustable, and the number of counterweights 22 can be increased or decreased according to the weight of the faulty mining vehicle being towed, effectively ensuring the safety of the tow truck. At the same time, the counterweight 22 can be installed using a crane or forklift, which has good adaptability to the installation equipment.

[0074] The terms used in this invention are descriptive and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the technical solution, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A counterweight device, used to be installed at the front lower part of the front support assembly of the frame to provide vertical load to the front wheel, characterized in that: include: The counterweight bracket, the counterweight block, the pin shaft, the buffer plate, and the gap adjusting gasket are provided with a first through hole, the center of gravity of the counterweight bracket is located in front of the first through hole, the pin shaft is installed in the first through hole, the counterweight block is fixed above the front of the counterweight bracket, and the counterweight block is fixed in front of the first through hole; the buffer plate is connected to the upper rear of the counterweight bracket, and the gap adjusting gasket is provided on the upper part of the buffer plate.

2. The counterweight device according to claim 1, wherein: The counterweight bracket includes: the counterweight device also includes: a cotter pin, a first bolt, a first nut, a second bolt, and a second nut. The counterweight bracket includes: a vertical plate, a support plate, and a mounting plate. The two vertical plates are positioned opposite to each other, the support plate is connected above the front of the two vertical plates, and the two mounting plates are respectively connected above the rear of the two vertical plates. The first through hole is arranged on the vertical plate between the support plate and the mounting plate, and the two first through holes are positioned opposite to each other; the support plate is provided with multiple second through holes, and the mounting plate is provided with multiple third through holes; the pin shaft is a stepped shaft, and a pin shaft through hole is radially arranged. The cotter pin is installed in the pin shaft through hole, and the pin shaft is installed in the first through hole. The second bolt passes through the third through hole and the fifth through hole on the buffer pad and is connected with the second nut to fix the buffer pad on the mounting plate of the counterweight bracket, and the gap adjusting gasket is arranged between the buffer pad and the mounting plate; the top surface of the counterweight block is provided with multiple fourth through holes along the height direction, and the first bolt passes through the fourth through hole and the second through hole and is connected with the first nut to fix the counterweight block on the support plate of the counterweight bracket.

3. The counterweight device according to claim 1, wherein: The vertical plate is a welded structure, including: a base plate and two vertical plate splits. The base plate is welded to the bottom of the two vertical plate splits. The vertical plate splits are respectively provided with vertical plate through holes. The two vertical plate through holes constitute the first through hole. The vertical plate through holes of the four vertical plate splits are located on the same axis.

4. The counterweight device according to claim 1, wherein: The buffer pad includes: a pad and an elastic part, the elastic part is arranged on the top of the pad, and the pad is provided with a plurality of fifth through holes.

5. The counterweight device according to claim 1, wherein: The bottom surface of the counterweight block is provided with two parallel counterweight block grooves that pass through front and back, and the top surface of the counterweight block is provided with multiple threaded holes, which are used to install lifting rings.

6. A mining tow truck, the front part of which is provided with a front support assembly, characterized in that: The front support assembly of the frame is connected to the counterweight device described in any one of claims 1 to 5. A plurality of mounting seats are provided below the front portion of the front support assembly of the frame, and a plurality of limit blocks are provided below the rear portion of the front support assembly. The mounting seats and the limit blocks are positioned relative to each other, and the mounting seats are provided with mounting seat through holes. The pin shaft is installed in the first through hole and the mounting seat through hole.

7. The mine wrecker according to claim 6, characterized in that: Two mounting seats and two limiting blocks are symmetrically arranged on both sides of the lower side of the front support assembly.

8. The mine wrecker according to claim 6, characterized in that: The buffer plate contacts the limit block.

9. The method for using a mine wrecker according to claim 6, wherein: include: Move the counterweight bracket to the bottom of the front support assembly of the vehicle frame, align the mounting seat through hole of the mounting seat with the mounting seat through hole of the vertical plate, insert the pin into the first through hole and the mounting seat through hole, and install the cotter pin into the pin through hole at the small end of the pin; By adjusting the number of gap adjustment shims between the buffer plate and the counterweight bracket mounting plate, adjust the horizontal angle of the support plate at the front of the counterweight bracket to ensure that the support plate is level, so that the mounting plate and the limit block are in contact and the support plate is level; A lifting ring is installed in the threaded hole of the counterweight block, and the counterweight block is placed on the support plate using a lifting fixture. The first bolt passes through the fourth through hole of the counterweight block and the first through hole of the support plate and is connected to the first nut to fix the counterweight block on the support plate of the counterweight bracket.

10. The method for using a mine wrecker according to claim 9, wherein: The second bolt passes through the fifth through hole on the buffer plate and the third through hole on the mounting plate and is connected to the second nut to fix the buffer plate to the mounting plate of the counterweight bracket; the forklift is inserted into the counterweight slot, the counterweight is moved to the side of the counterweight bracket, and then the counterweight is lifted using a sling.

Images