CN215155123U - Bulldozer crawler tensioning T-shaped threaded structure - Google Patents

Abstract

The utility model discloses a bull-dozer track rises and tightly T type helicitic texture relates to the tight technical field that rises, for solving the tight structure that rises of current bull-dozer track, because the leakproofness is relatively poor, causes the easy invading structure of dust foreign matter to lead to the dead problem of blockking up of card. One side of base is provided with the fixed plate, be provided with the fixed orifices on the fixed plate, the upper end of base is provided with first shell, the upper end of first shell is provided with the second shell, the inside of second shell is provided with T type screwed pipe, the lower extreme of T type screwed pipe is provided with the guide seat, the utility model discloses have good leakproofness simultaneously under the flexible movable prerequisite of assurance structure, can prevent the dust invasion structure.

Description

Bulldozer crawler tensioning T-shaped threaded structure

Technical Field

The utility model relates to a tight technical field that rises specifically is a bull-dozer track T type helicitic texture that rises.

Background

The tensioner acts on a timing belt or a timing chain of the engine, plays a role in guiding and tensioning the timing belt or the timing chain, and is always in the optimal tensioning state. The device can automatically adjust the tensioning degree of the timing belt and the timing chain. Under the drive of a timing belt or a timing chain, a camshaft drives a valve to open and close at the correct time, and the four processes of air inlet, compression, work application and air exhaust are completed by matching with a piston. The bulldozer is an earthwork machine capable of excavating, transporting and discarding rock soil, has wide application in open-pit mines, such as building dump sites, leveling automobile dump sites, piling scattered rock ores, leveling working flat trays, building sites and the like, can be used for auxiliary work and main mining work, such as stripping and mining of sand ore beds and traction and boosting of scrapers and rock ploughs, can be matched with other earthwork machines to reduce the height of stripping steps in a non-transportation mining method, and can be used in dangerous working environments due to large attachment traction force and strong climbing capability of the crawler bulldozer. The track tensioning arrangement is particularly important.

However, the existing bulldozer track tensioning structure has the problem that dust and foreign matters easily invade the structure to cause blockage due to poor sealing property; therefore, the existing requirements are not met, and a bulldozer track tensioning T-shaped threaded structure is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bull-dozer track rises and tightly T type helicitic texture to solve the current bull-dozer track that proposes in the above-mentioned background art and rise tight structure, because the leakproofness is relatively poor, cause the easy invasion structure of dust foreign matter to lead to the dead problem of blockking up of card.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bull-dozer track rises and tightly T type helicitic texture, includes the base, one side of base is provided with the fixed plate, and fixed plate and base welded connection, be provided with the fixed orifices on the fixed plate, and fixed orifices and fixed plate integrated into one piece set up, the upper end of base is provided with first shell, and first shell and base welded connection, the upper end of first shell is provided with the second shell, and second shell and first shell welded connection, the inside of second shell is provided with T type screwed pipe, and T type screwed pipe and second shell sliding connection, the lower extreme of T type screwed pipe is provided with the guide holder, and guide holder and T type screwed pipe welded connection.

Preferably, the inside of first shell is provided with interior buffer tube, and interior buffer tube and base welded connection, the inside of interior buffer tube is provided with interior buffer bar, and interior buffer bar and base welded connection.

Preferably, the upper end of interior buffer lever is provided with the buffering snubber block, and the buffering snubber block is connected with interior buffer lever gluing, and the lower extreme outer wall and the interior buffer tube inner wall sliding connection of guide holder.

Preferably, the lower end of the outer side of the guide seat is provided with a tension spring, the upper end and the lower end of the tension spring are respectively welded with the guide seat and the base, and the tension spring is nested on the outer wall of the inner buffer pipe.

Preferably, the inside of T type screwed pipe is provided with the piston, and piston and guide seat welded connection, the outer wall of piston is provided with the hydro-cylinder body, be provided with the pivot dead lever between piston and the hydro-cylinder body, and the pivot dead lever runs through piston and hydro-cylinder body, and the piston revolutes the pivot dead lever and is connected with the hydro-cylinder body pivot.

Preferably, the upper end of the oil cylinder body is provided with a fixed outer ring, and the fixed outer ring is connected with the oil cylinder body in a welding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting of guide holder, tension spring, interior buffer rod, interior buffer tube, buffering snubber block, after the fixed outer loop of proruption exogenic action or base, the device can rise the tight buffering exogenic action, the hydro-cylinder body under the fixed outer loop drives the piston that links to each other, the piston drives the guide holder and removes for the base, the T type screwed pipe that links to each other with the guide holder slides with the second shell, the whole structure in T type screwed pipe pushes down for interior buffer rod, and the guide holder can slide in the interior buffer tube, this structure can keep the moving direction of T type screwed pipe for the second shell unanimous, prevent T type screwed pipe slope deviation, later cushion the power that the guide holder moved downwards by tension spring, convert the kinetic energy of impact into mechanical potential energy, reach the effect of buffering external impact, if the effect is opposite then the structure removes, tension spring is then stretched, also convert kinetic energy into mechanical potential energy, accomplish and keep track stable transmission's tight structure that rises after bull-dozer track atress, the stability and the security of protection track operation, reduce the later maintenance cost, and buffer shock absorber piece is last cushioning effect before guide holder and interior buffer beam contact each other, the security of protection device structure, the structure has good leakproofness to the external environment, the sliding connection of second shell and T type screwed pipe, the exposure of inner structure to the external environment has greatly been reduced, the environmental corrosion of inner structure has been reduced, T type screw mainly used transmission motion and power, can two-way transmission. The so-called lead screws mostly use trapezoidal threads. Compared with rectangular thread, the transmission efficiency is slightly low, but the manufacturability is good, the tooth root strength is high, and the centering performance is good. If the split nut is matched with the device, the gap can be adjusted, the stability and the use safety of the device are improved, and the service life is prolonged.

2. Through the setting of piston, hydro-cylinder body, pivot dead lever, when the hydro-cylinder body received external force and was pulled out, the hydro-cylinder body can revolute the pivot dead lever and do small amplitude rotation in T type screwed pipe, prevents to make T type screwed pipe and second shell inner chamber take place the skew because the external force angle is too big to T type screwed pipe effect, guarantees the security that the device structure used.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the T-shaped threaded pipe structure of the present invention;

FIG. 3 is a schematic diagram of the inner buffer tube structure of the present invention;

in the figure: 1. a base; 2. a fixing plate; 3. a fixing hole; 4. a first housing; 5. a second housing; 6. a T-shaped threaded pipe; 7. fixing the outer ring; 8. a guide seat; 9. a tension spring; 10. an inner bumper bar; 11. an inner buffer tube; 12. a buffer damping block; 13. a piston; 14. a cylinder block; 15. the pivot dead lever.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a bull-dozer track rises and tightly T type helicitic texture, including base 1, one side of base 1 is provided with fixed plate 2, and fixed plate 2 and base 1 welded connection, be provided with fixed orifices 3 on the fixed plate 2, and fixed orifices 3 and the setting of fixed plate 2 integrated into one piece, the upper end of base 1 is provided with first shell 4, and first shell 4 and base 1 welded connection, the upper end of first shell 4 is provided with second shell 5, and second shell 5 and first shell 4 welded connection, the inside of second shell 5 is provided with T type screwed pipe 6, and T type screwed pipe 6 and 5 sliding connection of second shell, the lower extreme of T type screwed pipe 6 is provided with guide 8, and guide 8 and 6 welded connection of T type screwed pipe.

Further, the inside of first shell 4 is provided with interior buffer tube 11, and interior buffer tube 11 and base 1 welded connection, and the inside of interior buffer tube 11 is provided with interior buffer pole 10, and interior buffer pole 10 and base 1 welded connection, and interior buffer tube 11 can be regarded as the direction pipeline that tight spring 9 and guide seat 8 moved for the structure removes in the direction of regulation.

Further, the upper end of interior buffer beam 10 is provided with buffering snubber block 12, and buffering snubber block 12 is connected with interior buffer beam 10 gluing, and the lower extreme outer wall of guide seat 8 and the 11 inner wall sliding connection of interior buffer tube, and buffering snubber block 12 is the last cushioning effect before guide seat 8 and interior buffer beam 10 contact each other, the security of protection device structure.

Furthermore, the lower end of the outer side of the guide seat 8 is provided with a tension spring 9, the upper end and the lower end of the tension spring 9 are respectively welded with the guide seat 8 and the base 1, the tension spring 9 is nested on the outer wall of the inner buffer tube 11, and the tension spring 9 serves as a main buffer structure of the device structure and plays a role in tension buffer.

Further, a piston 13 is arranged inside the T-shaped threaded pipe 6, the piston 13 is connected with the guide seat 8 in a welded mode, an oil cylinder body 14 is arranged on the outer wall of the piston 13, a rotating shaft fixing rod 15 is arranged between the piston 13 and the oil cylinder body 14, the rotating shaft fixing rod 15 penetrates through the piston 13 and the oil cylinder body 14, the piston 13 is connected with the rotating shaft of the oil cylinder body 14 around the rotating shaft fixing rod 15 in a rotating mode, when the oil cylinder body 14 receives external force and is pulled out, the oil cylinder body 14 can rotate in the T-shaped threaded pipe 6 in a small-amplitude mode around the rotating shaft fixing rod 15, the T-shaped threaded pipe 6 is prevented from deviating from the inner cavity of the second shell 5 due to the fact that the external force angle is too large, and the use safety of the device structure is guaranteed.

Further, the upper end of the oil cylinder body 14 is provided with a fixed outer ring 7, the fixed outer ring 7 is connected with the oil cylinder body 14 in a welding mode, and the fixed outer ring 7 is used for being connected with an external fixed structure.

The working principle is as follows: when the device is used, after the outer ring 7 or the base 1 is fixed under the action of sudden external force, the device can tension buffering external force, the oil cylinder body 14 below the fixed outer ring 7 drives the connected piston 13, the piston 13 drives the guide seat 8 to move relative to the base 1, the T-shaped threaded pipe 6 connected with the guide seat 8 slides with the second outer shell 5, the whole structure inside the T-shaped threaded pipe 6 is pressed downwards relative to the inner buffer rod 10, the guide seat 8 can slide in the inner buffer pipe 11, the structure can keep the moving direction of the T-shaped threaded pipe 6 relative to the second outer shell 5 consistent, the inclination deviation of the T-shaped threaded pipe 6 is prevented, then the tension spring 9 buffers the downward moving force of the guide seat 8, the impact kinetic energy is converted into mechanical potential energy to buffer the external impact, if the force action is opposite, the structure moves reversely, the tension spring 9 is stretched to convert the kinetic energy into the mechanical potential energy, the tensioning structure for keeping the track stably driven after the track of the bulldozer is stressed is completed, the stability and the safety of the operation of the track are protected, the later maintenance cost is reduced, the buffer damping block 12 performs the final buffer action before the guide seat 8 and the inner buffer rod 10 are contacted with each other, the safety of the structure of the device is protected, the structure has good sealing property to the external environment, the second shell 5 is in sliding connection with the T-shaped threaded pipe 6, the exposure of the internal structure to the external environment is greatly reduced, the environmental corrosion action of the internal structure is reduced, the stability and the use safety of the device are improved, the service life is prolonged, when the oil cylinder body 14 is pulled out after receiving external force, the oil cylinder body 14 can rotate in the T-shaped threaded pipe 6 in a small degree around the shaft fixing rod 15, the phenomenon that the T-shaped threaded pipe 6 is deviated from the inner cavity of the second shell 5 due to the action of the overlarge external force angle on the T-shaped threaded pipe 6 is prevented, the safety of the device structure use is guaranteed, and the T-shaped threads are mainly used for transmitting motion and power and can transmit in two directions. The so-called lead screws mostly use trapezoidal threads. Compared with rectangular thread, the transmission efficiency is slightly low, but the manufacturability is good, the tooth root strength is high, and the centering performance is good. If a split nut is used, the gap can be adjusted.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a bull-dozer track rises and tightly T type helicitic texture, includes base (1), its characterized in that: one side of base (1) is provided with fixed plate (2), and fixed plate (2) and base (1) welded connection, be provided with fixed orifices (3) on fixed plate (2), and fixed orifices (3) set up with fixed plate (2) integrated into one piece, the upper end of base (1) is provided with first shell (4), and first shell (4) and base (1) welded connection, the upper end of first shell (4) is provided with second shell (5), and second shell (5) and first shell (4) welded connection, the inside of second shell (5) is provided with T type screwed pipe (6), and T type screwed pipe (6) and second shell (5) sliding connection, the lower extreme of T type screwed pipe (6) is provided with guide seat (8), and guide seat (8) and T type screwed pipe (6) welded connection.

2. The bulldozer track tension T-shaped thread structure as defined in claim 1, wherein: the inside of first shell (4) is provided with interior buffer tube (11), and interior buffer tube (11) and base (1) welded connection, the inside of interior buffer tube (11) is provided with interior buffer beam (10), and interior buffer beam (10) and base (1) welded connection.

3. The bulldozer track tension T-shaped thread structure according to claim 2, characterized in that: the upper end of interior buffer beam (10) is provided with buffering snubber block (12), and just cushions snubber block (12) and interior buffer beam (10) gluing and is connected, and the lower extreme outer wall and interior buffer tube (11) inner wall sliding connection of guide holder (8).

4. The bulldozer track tension T-shaped thread structure according to claim 2, characterized in that: the outer lower end of the guide seat (8) is provided with a tension spring (9), the upper end and the lower end of the tension spring (9) are respectively connected with the guide seat (8) and the base (1) in a welding mode, and the tension spring (9) is nested on the outer wall of the inner buffer tube (11).

5. The bulldozer track tension T-shaped thread structure as defined in claim 1, wherein: the inside of T type screwed pipe (6) is provided with piston (13), and piston (13) and guide holder (8) welded connection, the outer wall of piston (13) is provided with hydro-cylinder body (14), be provided with pivot dead lever (15) between piston (13) and hydro-cylinder body (14), and pivot dead lever (15) run through piston (13) and hydro-cylinder body (14), and piston (13) revolute pivot dead lever (15) and be connected with hydro-cylinder body (14) pivot.

6. The bulldozer track tensioning T-shaped thread structure according to claim 5, wherein: the upper end of the oil cylinder body (14) is provided with a fixed outer ring (7), and the fixed outer ring (7) is connected with the oil cylinder body (14) in a welding mode.

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