Travelling crane rail device

Abstract

The invention discloses a travelling crane rail device which comprises a rail structure and a sliding structure, the rail structure comprises a body, a spherical lubricating device is arranged at the inner top of the body, a spherical hole is formed in the top of the body, and the spherical lubricating device can be lubricated by the spherical hole when not pressed. The sliding structure is partially exposed to the upper portion of the body through the spherical hole, a hydraulic oil pipe is installed in the body and matched with the spherical lubricating device, side plates are installed on the two sides of the body, connecting plates are arranged on the two sides of the bottom of the body, and the sliding structure slides along the upper surface of the body. The sliding structure comprises a sliding seat, the sliding seat is in sliding fit with the top of the body, a connecting arm connected with a portal frame is arranged on the side face of the sliding seat, and side wing plates are installed on the two sides of the sliding seat. The device can finish automatic lubrication in the traveling process of the traveling crane.

Description

Technical Field

[0001] The invention relates to a vehicle track device. Background Art

[0002] A crane is an engineering machinery that lifts and moves heavy objects within a specified range.

[0003] The crane consists of a track, a slide, a gantry and a lifting structure, wherein the track and the slide constitute a track device.

[0004] In the prior art, the friction force is usually generated by the contact between the driving wheel and the track, and the friction force is used to drive the vehicle forward or backward. However, the contact area between the driving wheel and the track is small, so if the number of wheels is too small, the damage failure rate is high.

[0005] Therefore, in the prior art, there are also vehicles that move in a sliding manner, in which the driving wheels only play the role of creating friction, while the support is given to the track and the slide. This type of vehicle has higher stability.

[0006] In order to ensure the smooth sliding of the vehicle, lubricant needs to be applied between the track and the slide. The traditional technology is to apply it manually, but the manual application is relatively uneven. Secondly, the track is long, manual application is more troublesome, and there are certain safety hazards.

[0007] Based on the above problems, we designed a self-lubricating traveling track device which can automatically lubricate during the traveling process. Summary of the invention

[0008] The technical problem to be solved by the present invention is to provide a self-lubricating vehicle track device which can automatically lubricate during the vehicle running process.

[0009] To solve the above problems, the present invention adopts the following technical solutions:

[0010] A vehicle track device comprises a track structure and a sliding structure.

[0011] The track structure comprises a body, a spherical lubricating device is arranged at the inner top of the body, a spherical hole is arranged at the top of the body, the spherical lubricating device is partially exposed to the upper part of the body through the spherical hole in a non-pressurized state, a hydraulic oil pipe is installed inside the body, the hydraulic oil pipe cooperates with the spherical lubricating device, side plates are installed on both sides of the body, connecting plates are arranged at both sides of the bottom of the body, and the sliding structure slides along the upper surface of the body,

[0012] The sliding structure includes a sliding seat, which is slidably matched with the top of the main body, and a connecting arm connected to the gantry is arranged on the side of the sliding seat. Side wing plates are installed on both sides of the sliding seat, and wheel axles are rotatably matched at the side wing plates. One end of the wheel axle is inserted into the bottom of the side plate, and a friction wheel is fixed to the end. A reducer is installed on the outer side of the side wing plate, and a driving motor is installed at the input end of the reducer, and the output end of the reducer is connected to the wheel axle on one side; a rib plate is installed on the inner side of the side wing plate, and a side pulley is rotatably matched with the rib plate, and the side pulley acts on the side of the main body. The spacing between two adjacent spherical lubrication devices is greater than the length of the sliding structure, so that the sliding structure can only contact the spherical lubrication device at a time when sliding along the track structure.

[0013] It also includes a hydraulic oil pump and a lubricant pump. The hydraulic oil pump pumps the hydraulic oil in the oil storage tank into the hydraulic oil pipe. When the vehicle needs to be stopped in an emergency, the hydraulic oil pump pumps the hydraulic oil, and the hydraulic oil is pressed into the spherical lubrication device. At this time, the ball is convex, and when the slide seat slides along the main body, the ball forms an obstacle to the sliding of the slide seat. The slide seat breaks through the obstacle of the ball, so that the ball is pressed back into the spherical hole. At this time, the inertia of the slide seat moving forward is reduced until the vehicle stops.

[0014] When lubrication is needed, lubricant is pumped out through a lubricant pump and transported to the spherical lubrication device. As the vehicle passes by, the ball rolls. When the ball rolls, the attached lubricant acts on the bottom of the slide and is smeared on the upper surface of the body as the slide slides.

[0015] Preferably, the spherical lubrication device includes a base, an opening is provided at the top of the base, the base is fixed to the inner top of the body and is coaxial with the spherical hole, a lubrication hole is processed on the outer wall of the base, a sphere is movably provided in the base, and the sphere absorbs the lubricant in the base after rotation, a movable base structure is provided in the base, the movable base structure is supported on the bottom of the sphere, the lubricant entering from the lubrication hole enters the movable base structure and is transported upward to the sphere, and absorbs the lubricant as the sphere rotates, a piston body is provided in the base, a spring is cooperated between the piston body and the movable base structure, a connecting pipe for entering hydraulic oil is installed at the bottom of the base, the connecting pipe is connected to the hydraulic oil pipe, a pressure relief valve is provided on the side of the connecting pipe, and it also includes a lubricant pipe and an oil unloading pipe, the lubricant pipe is connected to the lubrication hole, and the oil unloading pipe is connected to the pressure relief valve.

[0016] Preferably, the movable base structure includes a support plate, a sliding tube is arranged under the support plate, a bottom plate is arranged at the bottom of the sliding tube, a sealing ring is arranged at the outer wall of the bottom plate, a positioning shaft is arranged at the bottom of the support plate, a first positioning shaft coaxial with the positioning shaft is arranged at the top axis of the piston body, the spring is installed between the positioning shaft and the first positioning shaft, the lubrication hole is located between the support plate and the bottom plate, when the ball enters the spherical hole after being pressurized, the spring is compressed, and the bottom plate moves downward, and the height of the bottom plate at this time is higher than the height of the lubrication hole, when hydraulic oil enters and the piston body moves upward until the spring is compressed to the limit position, the bottom plate is located below the lubrication hole, and a plurality of outlet holes for extracting lubricant are arranged in a ring on the top of the support plate.

[0017] Preferably, a spherical concave hole is processed on the top of the support plate, and the sphere is positioned through the spherical concave hole.

[0018] Preferably, a tapered hole is provided at the bottom of the piston body, the diameter of the tapered hole gradually decreases upward, and the tapered hole is coaxial with the connecting pipe.

[0019] Preferably, a sealing ring is provided at the inner top of the base, and the ball contacts the sealing ring when it moves upward to the limit position.

[0020] Preferably, a friction plate is installed at the bottom of the side plate, and the friction wheel cooperates with the friction plate.

[0021] Preferably, a reinforcing rib is provided between the slide seat and the side wing plate.

[0022] Preferably, the slide seat, side wing plates and reinforcing ribs are cast integral structures.

[0023] The beneficial effects of the present invention are:

[0024] Advantage 1: During the normal operation of the vehicle, the device can make the ball rotate by sliding the slide, and use the rotation of the ball to apply lubricant to the bottom of the slide, so that the friction resistance between the slide and the body is smaller, the sliding is smoother, and automatic lubrication is achieved. It only needs to pump lubricant into the lubricant pipe regularly, which makes maintenance very convenient.

[0025] The second advantage is that when the power system of the vehicle fails or an emergency quick stop is required, the ball can be pushed out to block the sliding of the slide seat, reducing the moving inertia during driving sliding and achieving a technical effect of faster braking.

[0026] Advantage three: the device has a simple structure, low cost and is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a three-dimensional diagram of the track structure;

[0030] Figure 3 is a cross-sectional view of the track structure;

[0031] Figure 4 is a schematic diagram of the sliding structure;

[0032] Figure 5 is a cross-sectional view of a spherical lubrication device;

[0033] Figure 6 This is a diagram of the device in use. DETAILED DESCRIPTION

[0034] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0035] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0036] In the description of the present invention, it is necessary to understand that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In addition, in the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "disposed", "socketed", "connected", "through", "plugged" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, it includes a track structure 1 and a sliding structure 2.

[0040] The track structure 1 includes a body 101, a spherical lubricating device 3 is provided at the inner top of the body 101, a spherical hole 102 is provided at the top of the body 101, the spherical lubricating device 3 is partially exposed to the upper part of the body 101 through the spherical hole 102 in an unpressurized state, a hydraulic oil pipe 4 is installed inside the body 101, the hydraulic oil pipe 4 cooperates with the spherical lubricating device 3, side plates 103 are installed on both sides of the body 101, and connecting plates 105 are provided at both sides of the bottom of the body 101, and the sliding structure 2 slides along the upper surface of the body 101,

[0041] The sliding structure 2 includes a slide 201, which is slidably matched with the top of the body 101. A connecting arm 202 connected to the gantry is arranged on the side of the slide 201. Side wing plates 203 are installed on both sides of the slide 201. The side wing plates 203 are rotatably matched with a wheel axle 204. One end of the wheel axle 204 is inserted under the side plate 103. A friction wheel 205 is fixed to the end. A reducer 5 is installed on the outside of the side wing plate 203. A driving motor 501 is installed at the input end, and the output end of the reducer 5 is connected to the wheel axle 204 on one side; a rib plate 206 is installed on the inner side of the side wing plate 203, and a side pulley 207 is rotated through the rib plate 206. The side pulley 207 acts on the side of the main body 101. The distance between two adjacent spherical lubrication devices 3 is greater than the length of the sliding structure 2, so that the sliding structure 2 can only contact the spherical lubrication device 3 at a time when sliding along the track structure 1.

[0042] The above technical solution mainly provides two technical effects:

[0043] Technical effect 1: During the normal operation of the vehicle, it is necessary to reduce the friction resistance between the slide 201 and the main body 101. At this time, the hydraulic oil pipe 4 is in a normal pressure state. When the power system of the vehicle is out of control, hydraulic oil is injected into the hydraulic oil pipe 4, so that the spherical lubrication device 3 blocks the sliding of the slide, thereby achieving a deceleration effect.

[0044] Technical effect 2: Under normal conditions, as the slide seat slides, the spherical lubrication device 3 applies the lubricant to the bottom of the slide seat, and as the slide seat slides, the lubricant is applied to the surface of the body, thereby reducing the sliding resistance of the slide seat.

[0045] See also Figure 2 , Figure 3 and Figure 5 As shown, the spherical lubrication device 3 includes a base 301, the top of the base 301 is provided with an opening, the base 301 is fixed to the inner top of the body 101, and is coaxial with the spherical hole 102, a lubrication hole 302 is processed on the outer wall of the base 301, a sphere 303 is movably provided in the base 301, and the sphere 303 picks up the lubricant in the base 301 after rotating, and a movable base structure 31 is provided in the base 301, and the movable base structure 31 is supported on the bottom of the sphere 303, and the lubricant entering from the lubrication hole 302 enters the movable base structure 31. The lubricant is transported upward to the ball 303 in the base structure 31. As the ball 303 rotates, it picks up the lubricant. A piston body 304 is arranged in the base 301. A spring 305 is provided between the piston body 304 and the movable base structure 31. A connecting pipe 306 for entering the hydraulic oil is installed at the bottom of the base 301. The connecting pipe 306 is connected to the hydraulic oil pipe 4. A pressure relief valve 307 is arranged on the side of the connecting pipe 306. It also includes a lubricant pipe 32 and an oil discharge pipe 33. The lubricant pipe 32 is connected to the lubrication hole 32, and the oil discharge pipe 33 is connected to the pressure relief valve 307.

[0046] In the above technical solution, under normal conditions, the piston body 304 is located at the inner bottom of the base 301. At this time, the spring is in a relaxed state and pushes up the ball 303, so that part of the ball 303 is exposed outside the spherical hole 102. When the slide 201 slides along the main body 101, the slide 201 presses into the ball 303 and drives the ball 303 to rotate as the slide 201 slides. During the rotation of the ball 303, the lubricant attached to its surface is smeared on the bottom of the slide 201.

[0047] When the vehicle needs to be stopped urgently, the piston body 304 moves upward under the action of the hydraulic oil. At this time, the spring 305 is compressed, and the downward resistance of the ball 303 increases. When the slide 201 slides along the main body 101, it is blocked by the ball 303, reducing the moving inertia of the slide 201, so that the slide 201 stops.

[0048] When the hydraulic oil pressure is too high, the pressure can be passively relieved through the pressure relief valve. When the ball 303 moves downward under the action of the slide 201, causing the oil pressure to increase excessively, the pressure can also be relieved through the pressure relief valve to avoid the risk of pipe bursting.

[0049] See also Figure 5 As shown, the movable base structure 31 includes a support plate 310, a slide tube 311 is arranged below the support plate 310, a bottom plate 312 is arranged at the bottom of the slide tube 311, a sealing ring 313 is arranged at the outer wall of the bottom plate 312, a positioning shaft 314 is arranged at the bottom of the support plate 310, a first positioning shaft 315 coaxial with the positioning shaft 314 is arranged at the top axis of the piston body 304, the spring 306 is installed between the positioning shaft 314 and the first positioning shaft 315, and the lubrication hole 306 is provided. 2 is located between the support plate 310 and the bottom plate 312. When the ball 303 enters the spherical hole 102 under pressure, the spring 306 is compressed and the bottom plate 312 moves downward. At this time, the height of the bottom plate 312 is higher than the height of the lubricating hole 302. When the hydraulic oil enters and the piston body 304 moves upward until the spring 306 is compressed to the limit position, the bottom plate 312 is located below the lubricating hole 302. A plurality of outlet holes 316 for outlet lubricant are provided in an annular manner on the top of the support plate 310.

[0050] In the above technical solution, through the cooperation of the support plate 310, the bottom plate 312 and the slide tube 311, the lubricant entering the base 301 is limited above the bottom plate 312, avoiding the lubricant entering below the bottom plate 312 and affecting the upward movement of the piston block 304.

[0051] After entering, the lubricant is discharged upward through the discharge hole 316 .

[0052] See also Figure 5 As shown, a spherical concave hole 317 is processed on the top of the support plate 310 , and the sphere 303 is positioned through the spherical concave hole 317 .

[0053] The spherical concave hole 317 can increase the contact area with the sphere 303, so that the force-bearing area of ​​the sphere 303 is increased and the deformation of the sphere 303 when under pressure is reduced.

[0054] Secondly, the spherical concave hole 317 can also deposit lubricant, so that the ball 303 can smoothly absorb the lubricant when rotating.

[0055] See also Figure 5 As shown, a tapered hole 344 is provided at the bottom of the piston body 304 , and the diameter of the tapered hole 344 gradually decreases upwards. The tapered hole 314 is coaxial with the connecting pipe 306 .

[0056] The tapered hole 314 is provided to increase the contact area with the lubricating oil.

[0057] See also Figure 5 As shown, a sealing ring 3331 is fixed at the inner top position of the base 301 , and the ball 303 contacts the sealing ring 3331 when it moves upward to the limit position.

[0058] The provision of the sealing ring 3331 can achieve a certain sealing effect.

[0059] See also Figure 3 As shown, a friction plate 104 is installed at the bottom of the side plate 103 , and the friction wheel 205 cooperates with the friction plate 104 .

[0060] The friction plate 104 is provided to provide the friction wheel 205 with more friction resistance, so that the rotation of the friction wheel 205 can smoothly drive the slide seat 201 to slide.

[0061] When emergency parking is performed, the motor is turned off and the friction wheel 205 is idling.

[0062] When the motor is effective, the motor can be reversed to perform emergency braking using the reverse friction force generated by the contact between the friction wheel 205 and the friction plate 104 .

[0063] See also Figure 4 As shown, a reinforcing rib 233 is provided between the slide seat 201 and the side wing plate 203 .

[0064] The sliding seat 201, the side wing plate 203 and the reinforcing rib 233 are a cast integrated structure.

[0065] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vehicle track device, characterized in that: It comprises a track structure (1) and a sliding structure (2), The track structure (1) comprises a body (101), a spherical lubricating device (3) is arranged at the inner top of the body (101), a spherical hole (102) is arranged at the top of the body (101), the spherical lubricating device (3) is partially exposed to the upper part of the body (101) through the spherical hole (102) in a non-pressurized state, a hydraulic oil pipe (4) is installed inside the body (101), the hydraulic oil pipe (4) cooperates with the spherical lubricating device (3), side plates (103) are installed on both sides of the body (101), and connecting plates (105) are arranged on both sides of the bottom of the body (101), and the sliding structure (2) slides along the upper surface of the body (101). The sliding structure (2) comprises a sliding seat (201), the sliding seat (201) is slidably matched with the top of the body (101), a connecting arm (202) connected to the gantry is arranged on the side of the sliding seat (201), side wing plates (203) are installed on both sides of the sliding seat (201), a wheel axle (204) is rotatably matched at the side wing plate (203), one end of the wheel axle (204) is inserted under the side plate (103), a friction wheel (205) is fixed to the end, a reducer (5) is installed on the outer side of the side wing plate (203), and the reducer (5) ) is installed with a driving motor (501) at the input end, and the output end of the reducer (5) is connected to the wheel axle (204) on one side; a rib plate (206) is installed on the inner side of the side wing plate (203), and a side pulley (207) is rotated by the rib plate (206), and the side pulley (207) acts on the side of the body (101), and the distance between two adjacent spherical lubricating devices (3) is greater than the length of the sliding structure (2), so that when the sliding structure (2) slides along the track structure (1), it can only contact the spherical lubricating device (3) at a time.

2. The self-lubricating vehicle track device according to claim 1, characterized in that: The spherical lubrication device (3) comprises a base (301), the top of the base (301) is provided with an opening, the base (301) is fixed to the inner top of the body (101) and is coaxial with the spherical hole (102), a lubrication hole (302) is processed on the outer wall of the base (301), a spherical body (303) is movably arranged in the base (301), the spherical body (303) picks up lubricant in the base (301) after rotation, a movable base structure (31) is arranged in the base (301), the movable base structure (31) is supported on the bottom of the spherical body (303), and the lubricant entering from the lubrication hole (302) enters the movable base structure (31) 31) and transported upward to the ball (303). As the ball (303) rotates, it picks up lubricant. A piston body (304) is arranged in the base (301). A spring (305) is arranged between the piston body (304) and the movable base structure (31). A connecting pipe (306) for entering hydraulic oil is installed at the bottom of the base (301). The connecting pipe (306) is connected to the hydraulic oil pipe (4). A pressure relief valve (307) is arranged on the side of the connecting pipe (306). The base also includes a lubricant pipe (32) and an oil discharge pipe (33). The lubricant pipe (32) is connected to the lubrication hole (32), and the oil discharge pipe (33) is connected to the pressure relief valve (307).

3. The self-lubricating vehicle track device according to claim 2, characterized in that: The movable base structure (31) comprises a support plate (310), a slide tube (311) is arranged below the support plate (310), a bottom plate (312) is arranged at the bottom of the slide tube (311), a sealing ring (313) is arranged at the outer wall of the bottom plate (312), a positioning shaft (314) is arranged at the bottom of the support plate (310), a first positioning shaft (315) coaxial with the positioning shaft (314) is arranged at the top axis of the piston body (304), the spring (306) is installed between the positioning shaft (314) and the first positioning shaft (315), and the lubrication hole (306) is provided with a plurality of springs. 2) is located between the support plate (310) and the bottom plate (312). When the ball (303) is under pressure and enters the spherical hole (102), the spring (306) is compressed and the bottom plate (312) moves downward. At this time, the height of the bottom plate (312) is higher than the height of the lubrication hole (302). When hydraulic oil enters and the piston body (304) moves upward until the spring (306) is compressed to the limit position, the bottom plate (312) is located below the lubrication hole (302). A plurality of outlet holes (316) for outlet lubricant are provided in an annular manner on the top of the support plate (310).

4. The self-lubricating vehicle track device according to claim 3, characterized in that: A spherical concave hole (317) is processed on the top of the support plate (310), and the sphere (303) is positioned through the spherical concave hole (317).

5. The self-lubricating vehicle track device according to claim 4, characterized in that: A tapered hole (344) is provided at the bottom of the piston body (304), the diameter of the tapered hole (344) gradually decreases upwards, and the tapered hole (314) is coaxial with the connecting pipe (306).

6. The self-lubricating vehicle track device according to claim 4, characterized in that: A sealing ring (3331) is provided at the inner top position of the base (301), and when the ball (303) moves upward to the limit position, it contacts the sealing ring (3331).

7. The self-lubricating vehicle track device according to claim 1, characterized in that: A friction plate (104) is installed at the bottom of the side plate (103), and the friction wheel (205) cooperates with the friction plate (104).

8. The self-lubricating vehicle track device according to claim 1, characterized in that: A reinforcing rib (233) is provided between the sliding seat (201) and the side wing plate (203).

9. The self-lubricating vehicle track device according to claim 1, characterized in that: The sliding seat (201), the side wing plates (203) and the reinforcing ribs (233) are cast integral structures.

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