CN111351712A

CN111351712A - Be applied to engineering machine tool production with davit intensity detection structure

Info

Publication number: CN111351712A
Application number: CN202010205346.0A
Authority: CN
Inventors: 浠讳华; 任仪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-06-30

Abstract

The invention discloses a suspension arm strength detection structure applied to engineering machinery production, which comprises a bottom plate, a hydraulic rod, a first spring, a rope, a lifting hook, a second spring and a limiting block, wherein a first groove is formed in the upper surface of the bottom plate, a first spherical roller is movably mounted in the first groove, a second groove is formed in the inner wall of the first groove in the bottom plate, a second spherical roller is movably mounted in the second groove, a base is placed above the first spherical roller, a bearing cylinder is fixedly arranged above the base, inner cavities are formed in the bearing cylinder and the base, the hydraulic rod is fixedly bolted in the inner cavity, and a connecting block is fixedly mounted above the hydraulic rod. This be applied to for engineering machine tool production davit intensity detects structure is convenient when detecting to remove the device wholly, can adjust lifting hook atress size when detecting moreover to thereby can adjust the atress of lifting hook in real time and reach better detection effect.

Description

Be applied to engineering machine tool production with davit intensity detection structure

Technical Field

The invention relates to the technical field of engineering machinery production, in particular to a boom strength detection structure applied to engineering machinery production.

Background

The common engineering machinery comprises a crane, an excavator, a drilling machine and the like, the main purpose of the engineering machinery is that the construction machinery provides convenience in the construction process, and compared with the direct use of manpower, the engineering machinery used in the construction process can greatly improve the construction efficiency and also can process the work which can not be achieved by the manpower, such as impacting a concrete layer, hoisting reinforced concrete articles, drilling downwards and the like, so that the effects of replacing the manpower and improving the construction efficiency can be achieved.

The crane usually comprises mechanical davit and a plurality of pneumatic cylinder, stretches out and draws back through the hook lock of telescopic davit to installing the front end to carry out handling work of different positions and co-altitude to the goods, need use davit intensity detection device to detect the davit after the production of this kind of engineering machinery of crane is accomplished usually, guarantee the quality at hoist davit position, detect the davit in advance and can avoid the follow-up quality problem condition such as bending when leading to davit handling goods that appears, can improve the security of follow-up construction.

Some engineering machine tool davit intensity detection device on the existing market:

(1) when the strength of the suspension arm is detected, the strength of the suspension arm is usually detected by lifting a heavy object, the strength of the suspension arm is different due to different specifications of different mechanical suspension arms, the conventional suspension arm strength detection device is inconvenient to adjust the detection strength according to the suspension arms with different specifications, has a low application range, is usually only suitable for the suspension arm with a certain specification, and is inconvenient to adjust the weight of the heavy object;

(2) the existing boom strength detection device is usually a heavy object placed on the ground, and because the mass of the object is large, the friction force between the existing boom strength detection device and the ground is large, the position of the heavy object is inconvenient to adjust and fix, the existing boom strength detection device is inconvenient to detect different types of construction machines, the front end of the boom of the construction machine needs to be corresponding to the position of the heavy object, and the existing boom strength detection device is inconvenient to use;

(3) in the process of actual use of the crane, the common objects hoisted on the crane boom are precast concrete wallboards, large steel plates and the like, the objects are easily influenced by wind power in the hoisting process, the objects at the front end of the boom swing back and forth by the wind power, so that the size of the tension force applied to the boom is increased and reduced, the existing boom strength detection device is not convenient for simulating the stress of the boom under the condition, and the detection effect is poor.

Therefore, we propose a strength detection structure of a suspension arm for engineering machinery production, so as to solve the above-mentioned problems.

Disclosure of Invention

The invention aims to provide a boom strength detection structure applied to production of engineering machinery, and aims to solve the problems that some boom strength detection devices in the prior market are inconvenient to adjust weights on the detection devices, move the weights integrally and adjust the stress of a boom in real time.

In order to achieve the purpose, the invention provides the following technical scheme: a boom strength detection structure applied to production of engineering machinery comprises a bottom plate, a hydraulic rod, a first spring, a rope, a lifting hook, a second spring and a limiting block, wherein a first groove is formed in the upper surface of the bottom plate, a first spherical roller is movably mounted in the first groove, a second groove is formed in the inner wall of the first groove in the bottom plate, a second spherical roller is movably mounted in the second groove, a base is placed above the first spherical roller, a bearing cylinder is fixedly arranged above the base, inner cavities are formed in the bearing cylinder and the base, the hydraulic rod is fixed in the inner cavity through bolts, a connecting block is fixedly mounted above the hydraulic rod, an inner sleeve is arranged on the outer side of the connecting block in a laminating manner, a clamping groove is formed in the inner sleeve, and a first bearing block is fixedly connected above the inner sleeve, and the fixed surface of first bearing block installs first spring, the top fixedly connected with second bearing block of first spring, and the top block of second bearing block installs the overlap joint piece to the fixed knot that is provided with in top of overlap joint piece, the inside interlude of fixed knot is provided with the rope, and the terminal swing joint of rope has the lifting hook, the cavity has all been seted up to the upper and lower both sides of overlap joint piece and the upside of second bearing block, and the inside movable mounting of cavity has the overlap joint board to the terminal fixedly connected with connecting plate of overlap joint board, the through-hole has been seted up on the surface of connecting plate, the equal fixed mounting in the outside of overlap joint piece top and the outside of second bearing block top has the lug, and the inside of lug has seted up the inside groove to the inside fixed mounting of inside groove has the second spring, the top fixedly connected with stopper of second spring.

Preferably, the first groove and the second groove are both in a segment shape, and the center of sphere of the first spherical roller is located inside the first groove.

Preferably, the center of sphere of the second spherical roller is inside the second groove, and the second spherical roller and the second groove are distributed in the first groove at equal intervals, and the second spherical roller is in contact with each other in the first groove.

Preferably, the shape of the base and the shape of the bearing cylinder are both cylinders, the inner diameter of the inner cavity in the base is equal to that of the inner cavity in the bearing cylinder, and the hydraulic rods are distributed in the inner cavity at equal intervals.

Preferably, the shape of the longitudinal section of the connecting block is T-shaped, the outer wall of the front end of the connecting block is matched with the inner wall of the clamping groove, the height of the clamping groove is larger than that of the front end of the connecting block, and the connecting block passes through the clamping groove and forms a clamping structure with the inner sleeve.

Preferably, the first springs are distributed between the first bearing block and the second bearing block at equal intervals, and the second bearing block forms an elastic structure with the first bearing block through the first springs.

Preferably, the overlap joint piece is the distribution of piling up form in the top of second bearing block, and the cavity in the overlap joint piece and the cavity in the adjacent overlap joint piece communicate each other to the overlap joint piece passes through to constitute the block structure between cavity and overlap joint board and the adjacent overlap joint piece.

Preferably, the shape of the longitudinal section of the lapping plate is J-shaped, the width of the lapping plate is smaller than that of the connecting plate, and the inner wall of the through hole is matched with the outer wall of the limiting block.

Preferably, the inner wall of the inner groove is matched with the outer wall of the limiting block, the limiting block forms an elastic structure with the bump through the second spring, and the lap-joint plate forms a clamping structure with the lap-joint block through the limiting block.

Compared with the prior art, the invention has the beneficial effects that: this be applied to engineering machine tool production with davit intensity detection structure:

(1) the suspension arm strength detection mechanism can adjust the bearing force of a subsequent lifting hook during operation through the mutually clamped overlapping blocks, the overlapping blocks on the device and the adjacent overlapping blocks can be fixed and disassembled, and the overlapping blocks can be assembled through the overlapping plates in the cavity, so that the weight is increased or reduced, and the purpose of adjusting the weight of a heavy object is achieved;

(2) the suspension arm strength detection structure can move the whole device through the bottom plate at the bottom, and the spherical idler wheels on the surface of the bottom plate and the spherical idler wheels in the grooves can fully reduce friction force, so that the whole device can be conveniently moved, different types of mechanical suspension arms can be conveniently detected, the front end of the suspension arm of the engineering machinery can correspond to the position of a heavy object, the use effect of the device is improved, and the number of the bottom plates can be increased to increase the adjustable range of the whole position of the device;

(3) be provided with the hydraulic stem in the bottom of device, first spring on can the cooperation device is taut to the overlap joint piece of top, after the taut overlap joint piece, can come to adjust in real time the bearing effect of lifting hook through real-time adjustment pulling force, the detection effect of device has been promoted, and the connecting block and the inner skleeve of hydraulic stem top, can allow the hydraulic stem certain error occasionally when going up and down when making a plurality of hydraulic stems of the device function, the asynchronous condition that leads to partial hydraulic stem to damage of a plurality of hydraulic stem lifts is avoided appearing and is taken place, the practicality of device has been promoted.

Drawings

FIG. 1 is a schematic overall front cross-sectional structural view of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;

FIG. 4 is a schematic view of the structure of FIG. 1 at C according to the present invention;

FIG. 5 is a schematic top view of a base according to the present invention;

FIG. 6 is a schematic bottom view of a second bearing block of the present invention;

FIG. 7 is a schematic view of the connecting block of the present invention in cross-section.

In the figure: 1. a base plate; 2. a first groove; 3. a first spherical roller; 4. a second groove; 5. a second spherical roller; 6. a base; 7. a carrying cylinder; 8. an inner cavity; 9. a hydraulic lever; 10. connecting blocks; 11. an inner sleeve; 12. a card slot; 13. a first bearing block; 14. a first spring; 15. a second bearing block; 16. a lapping block; 17. a fixing buckle; 18. a rope; 19. a hook; 20. a cavity; 21. a lap plate; 22. a connecting plate; 23. a through hole; 24. a bump; 25. an inner tank; 26. a second spring; 27. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: a boom strength detection structure applied to engineering machinery production comprises a bottom plate 1, a first groove 2, a first spherical roller 3, a second groove 4, a second spherical roller 5, a base 6, a bearing cylinder 7, an inner cavity 8, a hydraulic rod 9, a connecting block 10, an inner sleeve 11, a clamping groove 12, a first bearing block 13, a first spring 14, a second bearing block 15, an overlapping block 16, a fixing buckle 17, a rope 18, a lifting hook 19, a cavity 20, an overlapping plate 21, a connecting plate 22, a through hole 23, a convex block 24, an inner groove 25, a second spring 26 and a limiting block 27, wherein the first groove 2 is formed in the upper surface of the bottom plate 1, the first spherical roller 3 is movably arranged in the first groove 2, the second groove 4 is formed in the inner wall of the first groove 2 in the bottom plate 1, the second spherical roller 5 is movably arranged in the second groove 4, the base 6 is placed above the first spherical roller 3, a bearing cylinder 7 is fixedly arranged above the base 6, inner cavities 8 are respectively arranged inside the bearing cylinder 7 and the base 6, a hydraulic rod 9 is fixed inside the inner cavity 8 through a bolt, a connecting block 10 is fixedly arranged above the hydraulic rod 9, an inner sleeve 11 is arranged outside the connecting block 10 in a laminating manner, a clamping groove 12 is formed inside the inner sleeve 11, a first bearing block 13 is fixedly connected above the inner sleeve 11, a first spring 14 is fixedly arranged on the surface of the first bearing block 13, a second bearing block 15 is fixedly connected above the first spring 14, a lapping block 16 is clamped and arranged above the second bearing block 15, a fixing buckle 17 is fixedly arranged at the top of the lapping block 16, a rope 18 is arranged inside the fixing buckle 17 in an inserting manner, the tail end of the rope 18 is movably connected with a lifting hook 19, cavities 20 are respectively formed in the upper side and the lower side of the lapping block 16 and the upper side of the second bearing block 15, and the inside movable mounting of cavity 20 has lapping plate 21 to the terminal fixedly connected with connecting plate 22 of lapping plate 21, through-hole 23 has been seted up on the surface of connecting plate 22, and the outside above lapping block 16 and the outside above second bearing block 15 all fixedly mounted have lug 24, and the inside of lug 24 has seted up interior groove 25, and the inside fixed mounting of interior groove 25 has second spring 26, and the top fixedly connected with stopper 27 of second spring 26.

The shape of first recess 2 and second recess 4 all is the segment form, and the centre of sphere of first spherical gyro wheel 3 is in the inside of first recess 2, and the structure of first recess 2 and first spherical gyro wheel 3 is different with the structure identical size of second recess 4 and second spherical gyro wheel 5, and this structure can guarantee that first spherical gyro wheel 3 stabilizes the inside of block at first recess 2.

The centre of sphere of second spherical gyro wheel 5 is in the inside of second recess 4, and second spherical gyro wheel 5 and second recess 4 are at the inside equidistant distribution of first recess 2, and first spherical gyro wheel 3 and the inside second spherical gyro wheel 5 of everywhere of first recess 2 contact each other, can reduce the frictional force between base 6 and bottom plate 1 through the roll of spherical gyro wheel.

The shape of base 6 and the shape of bearing a container 7 are the cylinder, and the internal diameter of the inside inner chamber 8 of base 6 equals the internal diameter of the inside inner chamber 8 of bearing a container 7, and hydraulic stem 9 is in the equidistant distribution of the inside of inner chamber 8, conveniently carries on spacingly to the inside first bearing block 13 of device.

The appearance of connecting block 10 longitudinal section is "T" type, and the outer wall of connecting block 10 front end is identical with the inner wall of draw-in groove 12, and the height that highly is greater than connecting block 10 front end of draw-in groove 12, and connecting block 10 passes through and constitutes the block structure between draw-in groove 12 and the inner skleeve 11, prevents that the asynchronous partial hydraulic stem 9 that leads to of hydraulic stem 9 operation from damaging, and connecting block 10 and inner skleeve 11 can allow hydraulic stem 9 to have certain error when the first bearing block 13 of pulling.

First spring 14 is at equidistant distribution between first bearing block 13 and second bearing block 15, and second bearing block 15 constitutes elastic construction through first spring 14 and between the first bearing block 13, through hydraulic stem 9 and the cooperation of first spring 14 for the device can be adjusted the bearing of device top lifting hook 19 in real time, can adjust the developments bearing, and a plurality of first springs 14 can provide the pulling force simultaneously and be big enough.

The overlap joint piece 16 is the form of piling up and distributes in the top of second bearing block 15, and cavity 20 in the overlap joint piece 16 and the cavity 20 in the adjacent overlap joint piece 16 communicate each other to overlap joint piece 16 constitutes block structure through cavity 20 and lap joint plate 21 and between the adjacent overlap joint piece 16, conveniently splices or the split to overlap joint piece 16 and adjacent overlap joint piece 16, thereby adjusts static bearing.

The appearance of lapping plate 21 longitudinal section is "J" type, and the width of lapping plate 21 is less than the width of connecting plate 22, and the inner wall of through-hole 23 is identical with the outer wall of stopper 27, can catch on adjacent two bridging blocks 16 through the lapping plate 21 of "J" type.

The inner wall of the inner groove 25 is matched with the outer wall of the limit block 27, the limit block 27 and the bump 24 form an elastic structure through the second spring 26, the lap plate 21 and the lap block 16 form a clamping structure through the limit block 27, and after the lap plate 21 hooks the lap block 16, the lap plate 21 can be limited through the limit block 27, so that the lap plate 21 cannot move in the horizontal direction.

The working principle of the embodiment is as follows: when the strength detection structure for the suspension arm applied to the production of the engineering machinery is used, firstly, as shown in fig. 1-2 and fig. 5, the adjustable range of the position of the base 6 can be lifted by overlapping a plurality of base plates 1, when the device moves, the base 6 rolls on the first spherical roller 3, the first spherical roller 3 rolls in the first groove 2, and as the second grooves 4 at all places in the first groove 2 are uniformly distributed and the second spherical rollers 5 in the second grooves 4 are in contact with the first spherical roller 3, the friction force between the base 6 and the base plates 1 when the base 6 moves can be sufficiently reduced by the rolling of the second spherical rollers 5 and the first spherical rollers 3;

as shown in figures 1 and 3-5, before the device is used, the splicing block 16 and the adjacent splicing block 16 need to be spliced to achieve the purpose of increasing the weight born by a hook 19 at the top of the device, the method for testing the suspension arm of the device is to lift the splicing block 16 by the hook 19 matching with a rope 18 and a fixing buckle 17 so as to detect the strength of the suspension arm, when the weight needs to be increased, a splicing plate 21 is put into the cavity 20 according to the mode in figure 3, because the cavity 20 in the splicing block 16 is communicated with the cavity 20 in the adjacent splicing block 16, and the outer wall of the splicing plate 21 is matched with the inner wall of the cavity 20, the special-shaped splicing plate 21 enables the front end of the splicing plate 21 to hook the upper and lower splicing blocks 16, a plurality of splicing blocks 16 are spliced through the clamping structure, after the splicing is completed, a limiting block 27 is jacked up under the action of a second spring 26 in an inner groove 25, the lapping plate 21 can only move vertically, and the lapping plates 21 at the front, the back, the left and the right of the lapping blocks 16 are in a completely fixed state due to the fact that the cavity 20 limits the lapping plates 21, the whole device is in a stable state, and then the crane jib strength test work can be carried out, and when weight is required to be reduced, as shown in figure 4, the operation is carried out according to the reverse steps of the weight increasing;

as shown in fig. 1 and fig. 6-7, the device can adjust the load-bearing force in real time during the test process, by pulling the hydraulic rod 9 downwards, the connection block 10 moves in the slot 12 inside the inner sleeve 11, the first bearing block 13 is pulled downwards, the first spring 14 is stretched, as the hook 19 pulls the overlapping block 16, the second bearing block 15 and the first bearing block 13, the second bearing block 15 is pulled downwards, so that the pulling force applied to the hook 19 is increased during the test process, the number of the installed overlapping blocks 16 can be reduced first, and then the first bearing block 13 is pulled by the hydraulic rod 9, so that the pulling force applied to the hook 19 is reduced during the test process, which is the working process of the whole device, and what is not described in detail in this specification is the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a be applied to engineering machine tool production with davit intensity and detect structure, includes bottom plate (1), hydraulic stem (9), first spring (14), rope (18), lifting hook (19), second spring (26) and stopper (27), its characterized in that: the upper surface of the bottom plate (1) is provided with a first groove (2), a first spherical roller (3) is movably mounted in the first groove (2), a second groove (4) is formed in the inner wall of the first groove (2) in the bottom plate (1), a second spherical roller (5) is movably mounted in the second groove (4), a base (6) is placed above the first spherical roller (3), a bearing cylinder (7) is fixedly arranged above the base (6), inner cavities (8) are formed in the bearing cylinder (7) and the base (6), a hydraulic rod (9) is fixed in the inner cavity (8) through bolts, a connecting block (10) is fixedly mounted above the hydraulic rod (9), an inner sleeve (11) is attached to the outer side of the connecting block (10), a clamping groove (12) is formed in the inner sleeve (11), a first bearing block (13) is fixedly connected above the inner sleeve (11), a first spring (14) is fixedly mounted on the surface of the first bearing block (13), a second bearing block (15) is fixedly connected above the first spring (14), a lapping block (16) is clamped and mounted above the second bearing block (15), a fixing buckle (17) is fixedly arranged at the top of the lapping block (16), a rope (18) is arranged inside the fixing buckle (17) in a penetrating manner, a lifting hook (19) is movably connected at the tail end of the rope (18), cavities (20) are respectively formed in the upper side and the lower side of the lapping block (16) and the upper side of the second bearing block (15), a lapping plate (21) is movably mounted inside the cavities (20), a connecting plate (22) is fixedly connected at the tail end of the lapping plate (21), and through holes (23) are formed in the surface of the connecting plate (22), the outer side of the upper portion of the overlapping block (16) and the outer side of the upper portion of the second bearing block (15) are fixedly provided with a convex block (24), an inner groove (25) is formed in the convex block (24), a second spring (26) is fixedly arranged in the inner groove (25), and a limiting block (27) is fixedly connected to the upper portion of the second spring (26).

2. The boom strength detection structure applied to engineering machinery production as claimed in claim 1, wherein: the shapes of the first groove (2) and the second groove (4) are both in a spherical segment shape, and the spherical center of the first spherical roller (3) is arranged in the first groove (2).

3. The boom strength detection structure applied to engineering machinery production as claimed in claim 1, wherein: the center of sphere of the second spherical roller (5) is arranged in the second groove (4), the second spherical roller (5) and the second groove (4) are distributed in the first groove (2) at equal intervals, and the second spherical rollers (5) in the first spherical roller (3) and the first groove (2) are mutually contacted.

4. The boom strength detection structure applied to engineering machinery production as claimed in claim 1, wherein: the shape of base (6) and the shape of bearing cylinder (7) are the cylinder, and the internal diameter of the inside inner chamber (8) of base (6) equals the internal diameter of the inside inner chamber (8) of bearing cylinder (7), hydraulic stem (9) are at the inside equidistant distribution of inner chamber (8).

5. The boom strength detection structure applied to engineering machinery production as claimed in claim 1, wherein: the appearance of connecting block (10) longitudinal section is "T" type, and the outer wall of connecting block (10) front end is identical with the inner wall of draw-in groove (12) to the height that highly is greater than connecting block (10) front end of draw-in groove (12), connecting block (10) pass through and constitute the block structure between draw-in groove (12) and inner skleeve (11).

6. The boom strength detection structure applied to engineering machinery production as claimed in claim 1, wherein: the first springs (14) are distributed between the first bearing block (13) and the second bearing block (15) at equal intervals, and the second bearing block (15) forms an elastic structure with the first bearing block (13) through the first springs (14).

7. The boom strength detection structure applied to engineering machinery production as claimed in claim 1, wherein: the lapping blocks (16) are distributed above the second bearing block (15) in a stacking mode, cavities (20) in the lapping blocks (16) are communicated with cavities (20) in adjacent lapping blocks (16), and the lapping blocks (16) form a clamping structure with the adjacent lapping blocks (16) through the cavities (20) and the lapping plates (21).

8. The boom strength detection structure applied to engineering machinery production as claimed in claim 1, wherein: the appearance of the longitudinal section of the lapping plate (21) is J-shaped, the width of the lapping plate (21) is smaller than that of the connecting plate (22), and the inner wall of the through hole (23) is matched with the outer wall of the limiting block (27).

9. The boom strength detection structure applied to engineering machinery production as claimed in claim 1, wherein: the inner wall of the inner groove (25) is matched with the outer wall of the limiting block (27), the limiting block (27) forms an elastic structure with the convex block (24) through the second spring (26), and the lap joint plate (21) forms a clamping structure with the lap joint block (16) through the limiting block (27).