Drill rod triggering breaking hammer
The application has the following application numbers: 201610377537.9, filing date: the invention patent of 2016, 05, 31, entitled "a mechanical drill rod triggered demolition hammer" was filed in a divisional application.
Technical Field
The invention belongs to the technical field of breaking hammers, and particularly relates to a mechanical drill rod triggering breaking hammer.
Background
The conventional breaking hammer has various driving modes such as hydraulic driving, nitrogen and hydraulic hybrid driving, gravity driving and the like, and each driving mode achieves the effect of breaking objects by impacting a drill rod at a high speed to enable the drill rod to have large kinetic energy instantly; after the drill rod is impacted, huge kinetic energy is released by crushing objects, but the drill rod is often separated from the objects in work, and at the moment, the striking is still in progress, the huge striking kinetic energy cannot be released, and the drill rod is greatly damaged by long-time idle striking, so that the running cost of equipment is increased.
The invention designs a mechanical drill rod triggering breaking hammer to solve the problems.
Disclosure of Invention
In order to solve the defects in the prior art, the invention discloses a mechanical drill rod triggering breaking hammer which is realized by adopting the following technical scheme.
A mechanical drill rod triggered breaking hammer is characterized in that: it comprises a rocker swing hole, a clutch, a trigger lever, a drill rod sleeve, a first drill rod spring support, a drill rod spring, a second drill rod spring support, a drill rod guide block, a drill rod sleeve slide hole, a spring pin, a first impact hammer spring support, an impact hammer chute, a driving rod guide rail, a driving rod limiting plate, an impact hammer spring pin, a second impact hammer spring support, a driving rod limiting block, an impact hammer protection spring, a driving rod guide rail groove, a driving rod limiting groove, a hydraulic pump, a crank fixing structure, a crank spring, a rocker rotating shaft, a rotating pair, a crank sliding block, a sliding block limiting ring, a first outer side plate, a second outer side plate, a side plate reinforcing rib, an impact hammer reciprocating spring, a side plate and a rocker, wherein the first outer side plate and the second outer side plate are symmetrically installed together through a plurality of side plate reinforcing ribs, a connecting plate is further installed between the first outer side, the first outer side plate and the second outer side plate constitute a housing of the breaking hammer. The first outer side plate and the second outer side plate are provided with rocker swinging holes; the hydraulic pump and the clutch are both installed between the first outer side plate and the second outer side plate, and the input shaft of the clutch is connected with the rotating shaft of the hydraulic pump.
The hydraulic pump is controlled by hydraulic oil to drive the rotating shaft of the hydraulic pump to rotate, and the clutch is connected with the crank, so that whether the power of the hydraulic pump can be transmitted to the breaking hammer or not can be controlled by the clutch. The crank fixing structure is arranged on the clutch output shaft, one end of the crank is arranged on the crank fixing structure, the other end of the crank is provided with a slide block limiting ring, and the crank slide block slides on the crank; the crank spring is sleeved on the crank, one end of the crank spring is arranged on the crank fixing structure, and the other end of the crank spring is arranged on the crank sliding block; the rocker rotating shaft is arranged on the crank sliding block, one end of the rocker is arranged on the rocker rotating shaft, and the other end of the rocker is arranged on the rotating pair.
The positions of the rocker and the crank are matched through the crank sliding block and the crank spring, and the design aims at: when the crank rotates around the clutch output shaft, when the crank is vertically upward, the rocker drives the crank sliding block to slide to the root of the crank under the weight of the impact hammer, the crank spring at the position is compressed to obtain elastic force equal to the gravity of the impact hammer, and when the crank rotates downwards from vertical upward, the impact hammer rapidly moves downwards under the double action of the gravity of the impact hammer and the crank spring to impact the drill rod; the crank slider and the crank spring cooperate to store and release energy.
The top ends of the driving rods are arranged at the bottom ends of the rotating pairs, the two driving rod guide rails are symmetrically arranged at the lower sides of the driving rods, the driving rod limiting blocks are symmetrically arranged at the lower sides of the driving rods, and the symmetric surfaces of the two driving rod limiting blocks are perpendicular to the symmetric surfaces of the two driving rod guide rails; the upper end face of the impact hammer is provided with a round hole, two driving rod guide rail grooves and two driving rod limiting grooves are symmetrically formed in the round hole, and the symmetrical surfaces of the two driving rod guide rail grooves are perpendicular to the symmetrical surfaces of the two driving rod limiting grooves; the bottom end of the driving rod is arranged in the circular hole of the impact hammer, the driving rod guide rail is matched with the driving rod guide rail groove, and the driving rod limiting block is matched with the driving rod limiting groove; the driving rod limiting plate is arranged at the top end of the impact hammer, and a notch matched with the driving rod guide rail is formed in the driving rod limiting plate; two second impact hammer spring supports are symmetrically arranged on the upper side of the impact hammer, and each second impact hammer spring support is provided with an impact hammer spring pin; the impact hammer protection spring is installed in the impact hammer round hole, one end of the impact hammer protection spring is connected with the bottom end of the driving rod, and the other end of the impact hammer protection spring is connected with the bottom end of the impact hammer round hole.
The driving rod and the impact hammer can move mutually, and the impact hammer protection spring is added. The function is as follows: the mutual positions of the drill rod and the drill rod sleeve are different according to the mutual positions of the crushed object and the drill rod sleeve, and the impact position of the impact hammer and the drill rod is in a certain range during each impact; if the striking hammer moves along with the rocker and strikes against the drill rod when the crank does not move vertically downwards, the downward movement of the striking hammer is limited, but the crank still rotates to the vertically downward position at the moment, and the increased striking hammer protects the spring to contract at the moment, so that the contradiction between the stopping of the movement of the striking hammer and the continuous movement of the crank is counteracted. The crank spring also has a similar effect.
The impact hammer is arranged in the drill rod sleeve, two impact hammer chutes are symmetrically arranged on the side of the drill rod sleeve, two second impact hammer spring supports are respectively in sliding fit with the two impact hammer chutes, and the two first impact hammer spring supports are symmetrically arranged on the upper side of the drill rod sleeve; the two first impact hammer spring supports and the two second impact hammer spring supports correspond to each other in pairs respectively, in each correspondence, one end of an impact hammer reciprocating spring is installed on the second impact hammer spring support through an impact hammer spring pin, and the other end of the impact hammer reciprocating spring is installed on the first impact hammer spring support through the impact hammer spring pin; a drill rod sleeve sliding hole is formed in the lower position in the drill rod sleeve and penetrates through the whole drill rod sleeve, two first drill rod spring supports are symmetrically arranged on the drill rod sleeve and are positioned on the upper side of the drill rod sleeve sliding hole, two drill rod guide blocks are symmetrically arranged in the middle of the drill rod, a second drill rod spring support is respectively arranged on the two drill rod guide blocks, the drill rod is arranged in the drill rod sleeve, and the drill rod guide blocks are matched with the drill rod sleeve sliding hole; one end of a drill rod spring is arranged on a first drill rod spring support through a spring pin, the other end of the drill rod spring is arranged on a second drill rod spring support through a spring pin, a drill rod spring is arranged on a guide block, and the drill rod spring plays a role in resetting the drill rod when the drill rod is knocked to and fro; the reciprocating spring of the impact hammer plays the roles of energy recovery and release in the process of impact of the impact hammer and the drill rod each time, and generates a shock absorption effect on impact shock. The drill rod sleeve is arranged between the first outer side plate and the second outer side plate; one end of the trigger rod is arranged on the spring support of the second drill rod, and the other end of the trigger rod is connected with the clutch. Whether the clutch transmits power or not is controlled by the trigger rod.
As a further improvement of the technology, the drill rod guide block is installed on the drill rod by welding.
As a further improvement of the technology, the bottom end of the drill rod is a sharp corner.
As a further improvement of the technology, the rotary pair comprises support lugs, cylindrical pins and connecting blocks, wherein the two support lugs are arranged on the connecting blocks in parallel, the cylindrical pins are arranged on the support lugs, the connecting blocks are arranged at the top ends of the driving rods, and the rocking rods are arranged on the cylindrical pins.
As a further improvement of the present technology, the first outer side plate and the second outer side plate are further provided with mounting holes.
Compared with the traditional breaking hammer technology, the drill rod is arranged in the drill rod sleeve through the sliding fit of the drill rod guide block and the drill rod sleeve sliding hole, the drill rod spring is arranged on the guide block, and the drill rod plays a role in resetting the drill rod when the drill rod is in reciprocating beating operation; the impact hammer is driven by the hydraulic pump through the crank rocker mechanism to periodically impact the drill rod, so that the drill rod can crush objects. In the mechanism design, the trigger rod is additionally arranged to drive the clutch to be controlled through the drill rod, and the clutch has the advantages that the clutch can be closed only when the drill rod exerts certain force on an object and the drill rod retracts, and when the object is broken by reciprocating motion after the drill rod retracts, the position of the drill rod, which is opposite to the outermost side of the drill rod sleeve, is enough to ensure that the trigger rod can close the clutch. As long as the drill rod leaves the object, the trigger rod moves downwards to open the clutch, and the knocking mechanism immediately stops knocking, so that the idle knocking phenomenon of the drill rod is prevented, and the service life of the drill rod is prolonged.
Drawings
FIG. 1 is a schematic view of a shank and shank sleeve installation.
FIG. 2 is a schematic view of a shank sleeve construction.
FIG. 3 is a schematic view of a drill rod configuration.
Figure 4 is a schematic view of the drive rod and impact hammer installation.
Fig. 5 is a schematic view of the drive rod configuration.
Fig. 6 is a cross-sectional view of the impact hammer structure.
FIG. 7 is a crank rocker mounting schematic.
Fig. 8 is a schematic view of a crank block installation.
Fig. 9 is a schematic view of a crank block structure.
Fig. 10 is a schematic view of the overall structure of the breaking hammer.
Fig. 11 is a schematic view of the internal structure of the breaking hammer.
FIG. 12 is a schematic view of the first and second exterior panels being installed.
Fig. 13 is a front view of the internal structure of the demolition hammer.
Number designation in the figures: 1. rocker pendulum hole, 2, clutch, 3, trigger lever, 21, drill lever, 22, drill lever sleeve, 23, first drill lever spring support, 24, drill lever spring, 25, second drill lever spring support, 26, drill lever guide block, 27, drill lever sleeve slide hole, 28, spring pin, 30, first hammer spring support, 31, hammer chute, 32, lug, 33, cylinder pin, 34, connecting block, 35, driving rod, 36, driving rod guide rail, 37, driving rod limiting plate, 38, hammer, 39, hammer spring pin, 40, second hammer spring support, 41, driving rod limiting block, 42, hammer protection spring, 43, driving rod guide rail groove, 44, driving rod limiting groove, 45, hydraulic pump, 46, crank fixing structure, 47, crank spring, 48, rocker shaft, 49, revolute pair, 50, crank, 51, crank block, 52, slider limiting ring, 53. the first outer side plate, 54, the mounting hole, 55, the second outer side plate, 56, the side plate reinforcing rib, 57, the striking hammer reciprocating spring, 59, the side plate connecting plate, 60 and the rocker.
Detailed Description
As shown in fig. 10 and 11, it comprises a rocker pendulum hole, a clutch, a trigger lever, a drill rod sleeve, a first drill rod spring support, a drill rod spring, a second drill rod spring support, a drill rod guide block, a drill rod sleeve slide hole, a spring pin, a first impact hammer spring support, an impact hammer slide groove, a drive rod guide rail, a drive rod limit plate, an impact hammer spring pin, a second impact hammer spring support, a drive rod limit block, an impact hammer protection spring, a drive rod guide rail groove, a drive rod limit groove, a hydraulic pump, a crank fixing structure, a crank spring, a rocker rotating shaft, a rotating pair, a crank block, a slide block limit ring, a first outer side plate, a second outer side plate, a side plate reinforcing rib, an impact hammer reciprocating spring, a side plate connecting plate and a rocker, wherein as shown in fig. 10, the first outer side plate and the second outer side plate are symmetrically installed, as shown in fig. 11 and 12, a side plate connecting plate is further installed between the first outer side plate and the second outer side plate, and the first outer side plate and the second outer side plate constitute a housing of the breaking hammer. As shown in fig. 11 and 13, the first outer side plate and the second outer side plate are provided with rocker swing holes; the design of the rocker swing hole can prevent the rocker from interfering with the outer side plate when swinging; the hydraulic pump and the clutch are both installed between the first outer side plate and the second outer side plate, and the input shaft of the clutch is connected with the rotating shaft of the hydraulic pump.
As shown in FIG. 13, the hydraulic pump is controlled by hydraulic oil to drive the rotating shaft of the hydraulic pump to rotate, and the clutch is connected with the crank, so that whether the power of the hydraulic pump can be transmitted to the breaking hammer or not can be controlled by the clutch. The crank fixing structure is arranged on the clutch output shaft, as shown in fig. 8, one end of the crank is arranged on the crank fixing structure, the other end of the crank is provided with a slide block limiting ring, and the crank slide block slides on the crank; the crank spring is sleeved on the crank, one end of the crank spring is arranged on the crank fixing structure, and the other end of the crank spring is arranged on the crank sliding block; as shown in fig. 8 and 9, the rocker rotating shaft is mounted on the crank slider, and as shown in fig. 7, one end of the rocker is mounted on the rocker rotating shaft, and the other end is mounted on the rotating pair.
The positions of the rocker and the crank are matched through the crank sliding block and the crank spring, and the design aims at: when the crank rotates around the clutch output shaft, when the crank is vertically upward, the rocker drives the crank sliding block to slide to the root of the crank under the weight of the impact hammer, the crank spring at the position is compressed to obtain elastic force equal to the gravity of the impact hammer, and when the crank rotates downwards from vertical upward, the impact hammer rapidly moves downwards under the double action of the gravity of the impact hammer and the crank spring to impact the drill rod; the crank slider and the crank spring cooperate to store and release energy.
As shown in fig. 4 and 5, the top end of the driving rod is installed at the bottom end of the revolute pair, the two driving rod guide rails are symmetrically installed at the lower sides of the driving rods, the driving rod limiting blocks are symmetrically installed at the lower sides of the driving rods, and the symmetric surfaces of the two driving rod limiting blocks are perpendicular to the symmetric surfaces of the two driving rod guide rails; as shown in fig. 6, a round hole is formed on the upper end surface of the impact hammer, two driving rod guide rail grooves and two driving rod limiting grooves are symmetrically formed in the round hole, and the symmetric surfaces of the two driving rod guide rail grooves are perpendicular to the symmetric surfaces of the two driving rod limiting grooves; the bottom end of the driving rod is arranged in the circular hole of the impact hammer, the driving rod guide rail is matched with the driving rod guide rail groove, and the driving rod limiting block is matched with the driving rod limiting groove; the driving rod limiting plate is arranged at the top end of the impact hammer, and a notch matched with the driving rod guide rail is formed in the driving rod limiting plate; two second impact hammer spring supports are symmetrically arranged on the upper side of the impact hammer, and each second impact hammer spring support is provided with an impact hammer spring pin; the impact hammer protection spring is installed in the impact hammer round hole, one end of the impact hammer protection spring is connected with the bottom end of the driving rod, and the other end of the impact hammer protection spring is connected with the bottom end of the impact hammer round hole.
The driving rod and the impact hammer can move mutually, and the impact hammer protection spring is added. The function is as follows: the mutual positions of the drill rod and the drill rod sleeve are different according to the mutual positions of the crushed object and the drill rod sleeve, and the impact position of the impact hammer and the drill rod is in a certain range during each impact; if the striking hammer moves along with the rocker and strikes against the drill rod when the crank does not move vertically downwards, the downward movement of the striking hammer is limited, but the crank still rotates to the vertically downward position at the moment, and the increased striking hammer protects the spring to contract at the moment, so that the contradiction between the stopping of the movement of the striking hammer and the continuous movement of the crank is counteracted. The crank spring also has a similar effect.
As shown in fig. 1, the impact hammer is installed in the drill rod sleeve, as shown in fig. 2, the drill rod sleeve is symmetrically provided with two impact hammer chutes at the upper side, two second impact hammer spring supports are respectively in sliding fit with the two impact hammer chutes, and two first impact hammer spring supports are symmetrically installed at the upper side of the drill rod sleeve; the two first impact hammer spring supports and the two second impact hammer spring supports correspond to each other in pairs respectively, in each correspondence, one end of an impact hammer reciprocating spring is installed on the second impact hammer spring support through an impact hammer spring pin, and the other end of the impact hammer reciprocating spring is installed on the first impact hammer spring support through the impact hammer spring pin; as shown in fig. 2, a drill rod sleeve sliding hole is formed in the drill rod sleeve at a lower position and penetrates through the whole drill rod sleeve, two first drill rod spring supports are symmetrically arranged on the drill rod sleeve and positioned on the upper side of the drill rod sleeve sliding hole, two drill rod guide blocks are symmetrically arranged in the middle of a drill rod, as shown in fig. 3, two second drill rod spring supports are respectively arranged on the two drill rod guide blocks, the drill rod is arranged in the drill rod sleeve, and the drill rod guide blocks are matched with the drill rod sleeve sliding hole; one end of a drill rod spring is arranged on a first drill rod spring support through a spring pin, the other end of the drill rod spring is arranged on a second drill rod spring support through a spring pin, a drill rod spring is arranged on a guide block, and the drill rod spring plays a role in resetting the drill rod when the drill rod is knocked to and fro; the reciprocating spring of the impact hammer plays the roles of energy recovery and release in the process of impact of the impact hammer and the drill rod each time, and generates a shock absorption effect on impact shock. The drill rod sleeve is arranged between the first outer side plate and the second outer side plate; as shown in FIG. 13, the trigger lever is mounted on the second lever spring support at one end and connected to the clutch at the other end. Whether the clutch transmits power or not is controlled by the trigger rod.
The drill rod guide block is arranged on the drill rod in a welding mode.
The bottom end of the drill rod is a sharp corner.
As shown in fig. 4, the above-mentioned rotary pair includes a support lug, a cylindrical pin and a connecting block, wherein two support lugs are installed on the connecting block in parallel, the cylindrical pin is installed on the support lug, the connecting block is installed at the top end of the driving rod, and the rocker is installed on the cylindrical pin.
As shown in fig. 10, the first and second outer side plates are further provided with mounting holes.
In summary, the drill rod is arranged in the drill rod sleeve through the sliding fit of the drill rod guide block and the drill rod sleeve sliding hole, the drill rod spring is arranged on the guide block, and the drill rod plays a role in resetting the drill rod when the drill rod is knocked to and fro; the impact hammer is driven by the hydraulic pump through the crank rocker mechanism to periodically impact the drill rod, so that the drill rod can crush objects. In the mechanism design, the trigger rod is additionally arranged to drive the clutch to be controlled through the drill rod, and the clutch has the advantages that the clutch can be closed only when the drill rod exerts certain force on an object and the drill rod retracts, and when the object is broken by reciprocating motion after the drill rod retracts, the position of the drill rod, which is opposite to the outermost side of the drill rod sleeve, is enough to ensure that the trigger rod can close the clutch. As long as the drill rod leaves the object, the trigger rod moves downwards to open the clutch, and the knocking mechanism immediately stops knocking, so that the idle knocking phenomenon of the drill rod is prevented, and the service life of the drill rod is prolonged.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.