Crane tension test device

Abstract

The utility model discloses a crane tension testing device which comprises a connecting column, a balancing weight, a first inserting hole, a second inserting hole, a round bar, an extrusion limiting mechanism and a hanging lug mechanism. According to the crane tension test device, a first insertion hole is formed in a position, corresponding to each balancing weight, of a connecting column, a second insertion hole is formed in a position, corresponding to the first insertion hole, of each balancing weight in a penetrating manner, a round rod is inserted into one of the first insertion hole and the second insertion hole, and one end of the round rod is connected with an extrusion limiting mechanism; the top end of the connecting column is connected with a hanging lug mechanism, the balancing weights are slidably positioned through the guide column so that the balancing weights can be stacked in order, the connecting column is inserted through cooperation of a first inserting hole, a second inserting hole and a round rod, the number of the balancing weights which can be driven when the connecting column is lifted is controlled, and therefore the lifting weight is controlled, adding of heavy objects is not needed, and the lifting efficiency is improved. The counter weight can be adjusted directly through insertion and extraction and position adjustment of the round bar, and operation is more labor-saving and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of crane detection, in particular to a crane pulling force inspection and testing device. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. The crane mainly includes a lifting mechanism, a running mechanism, a luffing mechanism, a slewing mechanism and a metal structure. With the development and increasing use of cranes in the market, the pulling force of the crane must be inspected and tested before it is put into use to ensure its safe use.

[0003] The patent document with announcement number CN218823235U discloses a crane tension inspection test device, including a base, wherein the bottom of the base is provided with supporting feet all around; the top of the base is evenly provided with guide rods; the top of the base is evenly fitted with supporting legs, and the tops of the supporting legs are all provided on a test box, the test box is hinged with a box door, and the box door is provided with a door lock; the test box is evenly provided with guide sleeves slidably sleeved on the guide rods; a placement assembly is provided in the test box; the sliding rod is driven to move by an electric guide rail, which can drive the placement plate to extend or retract into the test box, thereby facilitating the addition or removal of heavy objects on the outside of the test box.

[0004] Although the above-mentioned prior art can conveniently remove and add weights, it is still necessary to add weights, which is laborious and cumbersome. Therefore, a new crane tension inspection and testing device is proposed to optimize the above-mentioned prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a crane tension testing device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A crane tension inspection and testing device comprises a base plate, on which counterweight blocks are stacked and placed, wherein rectangular holes are provided in the middle of the counterweight blocks, and connecting columns matched with the rectangular holes are provided in the rectangular holes, wherein the connecting columns are rectangular columns, and a first plug hole is provided on the connecting columns corresponding to each counterweight block, and second plug holes are provided through the counterweight blocks corresponding to the first plug holes, wherein a round rod is inserted into one of the first plug hole and the second plug hole, and an extrusion limit mechanism is connected to one end of the round rod, and a hanging ear mechanism is connected to the top end of the connecting column, and guide columns are fixedly connected to the four corners of the top surface of the base plate, and the guide columns slide through the counterweight blocks and the top ends are fixedly connected to limit blocks, and round holes for the guide columns to slide and pass through are provided at the four corners of the counterweight blocks.

[0008] As a further solution of the utility model: the hanging ear mechanism includes symmetrically arranged hanging rings, which are used to connect with the hook of the crane, and the bottom edges of the hanging rings are fixedly connected with L-shaped parts on the sides away from each other, the L-shaped parts are buckled on the top outer side of the connecting column, and the bottom inner side of the L-shaped parts is fixedly connected with plug blocks.

[0009] As a further solution of the utility model: the plug is inserted into the inner side of the top of the connecting column, and a slot for inserting the plug is opened on the top of the connecting column. The hanging rings are fixed and installed by bolts. The hanging rings are opened with round holes for the bolts to pass through, and the ends of the bolts are threadedly connected with nuts.

[0010] As a further solution of the utility model: the extrusion limiting mechanism includes an insert tube, the insert tube portion is inserted into the second insert hole, the tail end of the insert tube is fixedly connected to the first pinch handle, a rod body adapted thereto is inserted into the insert tube, and the tail end of the rod body is fixedly connected to the second pinch handle.

[0011] As a further solution of the utility model: a positioning baffle is fixedly connected to the outer side of the insertion tube, and the baffle is in contact with the outer wall of the counterweight block.

[0012] As a further solution of the utility model: a spring is provided between the second pinching handle and the first pinching handle and is sleeved on the outside of the rod body; an avoidance step and a limit step are provided at one end of the rod body inserted into the insertion tube; the avoidance step and the limit step are both annular grooves and are connected into a whole through a slope; a placement cavity is provided at the insertion tube corresponding to the avoidance step and the limit step; a ball is provided in the placement cavity; the ball part protrudes from the placement cavity and is embedded in the inner wall of the second insertion hole; and a groove matching the ball is provided on the inner wall of the second insertion hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model uses a guide column to slide and position the counterweight blocks so that the counterweight blocks are neatly stacked. The connecting column is inserted into the first socket, the second socket and the round rod to control the number of counterweight blocks that can be driven when the connecting column is lifted, thereby controlling the lifting weight. There is no need to add heavy objects. The counterweight can be adjusted directly by plugging and pulling out the round rod and adjusting its position, which makes the operation more labor-saving and convenient.

[0015] 2. The utility model connects the connecting column to the hook of the crane through a hanging ear mechanism, wherein the hanging ear mechanism is composed of two hanging rings, the plug block and the slot are inserted and matched, and the bolts are locked and fixed to form an assembled installation, so that the hanging ear mechanism can be easily disassembled and replaced when the hanging ear mechanism is worn and damaged.

[0016] 3. The utility model forms an extrusion reset by cooperating with the spring through the first pinch handle and the second pinch handle, thereby adjusting the correspondence between the avoidance step and the limit step and the ball, so as to facilitate the control of the protrusion of the ball in the placement cavity, so that the ball can be pushed into the groove, thereby forming a limit effect, preventing the round rod from falling off after being inserted into the first plug hole and the second plug hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a structural schematic diagram of a crane tension inspection and testing device.

[0018] Figure 2 The exploded structural diagram of the lug mechanism in a crane tension inspection and testing device.

[0019] Figure 3 The present invention is a cross-sectional view of an extrusion limiting mechanism in a crane tension inspection and testing device.

[0020] Figure 4 This is an enlarged view of A in a crane tension test device.

[0021] In the figure: 1. bottom plate; 2. counterweight; 3. rectangular hole; 4. connecting column; 5. first plug hole; 6. second plug hole; 7. round rod; 8. extrusion limit mechanism; 9. hanging ear mechanism; 10. guide column; 11. limit block; 12. hanging ring; 13. L-shaped piece; 14. plug block; 15. slot; 16. bolt; 17. first pinch handle; 18. rod body; 19. second pinch handle; 20. baffle; 21. spring; 22. insert tube; 23. avoidance step; 24. limit step; 25. placement cavity; 26. ball; 27. groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 4In the embodiment of the utility model, a crane tension inspection and testing device comprises a bottom plate 1, a counterweight block 2 is stacked and placed on the top of the bottom plate 1, a rectangular hole 3 is opened in the middle of the counterweight block 2, and a connecting column 4 adapted to the rectangular hole 3 is placed in the rectangular hole 3. The connecting column 4 is a rectangular column, and a first plug hole 5 is opened on the connecting column 4 corresponding to each counterweight block 2, and a second plug hole 6 is opened through the counterweight block 2 corresponding to the first plug hole 5, a round rod 7 is inserted into one of the first plug holes 5 and the second plug hole 6, and an extrusion limit mechanism 8 is connected to one end of the round rod 7, and a hanging ear mechanism 9 is connected to the top of the connecting column 4, and the four corners of the top surface of the bottom plate 1 are fixedly connected with guide columns 10, and the guide columns 10 slide through the counterweight block 2 and the top is fixedly connected with a limit block 11. By setting the limit block 11, the counterweight block 2 can be effectively prevented from slipping on the guide column 10. The four corners of the counterweight block 2 are provided with round holes for the guide column 10 to slide and penetrate.

[0024] The counterweight blocks 2 are slidably positioned through the guide column 10 so that the counterweight blocks 2 can be neatly stacked. The connecting column 4 is inserted into the first socket 5, the second socket 6 and the round rod 7 to control the number of counterweight blocks 2 that can be driven when the connecting column 4 is lifted, thereby controlling the lifting weight. There is no need to add heavy objects. The counterweight can be adjusted directly by plugging and unplugging the round rod 7 and adjusting its position, which makes the operation more labor-saving and convenient.

[0025] The ear hanging mechanism 9 includes a symmetrically arranged hanging ring 12, which is used to connect to the hook of the crane. The bottom edges of the hanging ring 12 are fixedly connected to the sides away from each other with L-shaped parts 13, and the L-shaped parts 13 are buckled on the top outer side of the connecting column 4. The bottom inner side of the L-shaped parts 13 is fixedly connected to the plug blocks 14.

[0026] The plug block 14 is inserted into the inner side of the top of the connecting column 4. A slot 15 for inserting the plug block 14 is provided on the top of the connecting column 4. The hanging rings 12 are fixed and installed by bolts 16. The hanging rings 12 are provided with round holes for the bolts 16 to pass through. The ends of the bolts 16 are threadedly connected with nuts.

[0027] The connecting column 4 is connected to the hook of the crane through the hanging ear mechanism 9, wherein the hanging ear mechanism 9 is composed of two hanging rings 12, the plug block 14 and the slot 15 are inserted and matched, and the bolts 16 are locked and fixed to form an assembled installation, so that the hanging ear mechanism 9 can be easily disassembled and replaced when the hanging ear mechanism 9 is worn or damaged.

[0028] The extrusion limiting mechanism 8 includes an insert tube 22, which is partially inserted into the second insertion hole 6, and the tail end of the insert tube 22 is fixedly connected to the first pinch handle 17, and a rod body 18 adapted thereto is inserted into the insert tube 22, and the tail end of the rod body 18 is fixedly connected to the second pinch handle 19.

[0029] A positioning baffle 20 is fixedly connected to the outer side of the insert tube 22 , and the baffle 20 is in contact with the outer wall of the counterweight 2 .

[0030] A spring 21 is provided between the second pinch handle 19 and the first pinch handle 17 and is sleeved on the outside of the rod body 18. An avoidance step 23 and a limit step 24 are provided at one end of the rod body 18 inserted into the insertion tube 22. The avoidance step 23 and the limit step 24 are both annular grooves and are connected into a whole through a slope. A placement cavity 25 is provided at the insertion tube 22 corresponding to the avoidance step 23 and the limit step 24. A ball 26 is provided in the placement cavity 25. The ball 26 partially protrudes from the placement cavity 25 and is embedded in the inner wall of the second insertion hole 6. The inner wall of the second insertion hole 6 is provided with a groove 27 adapted to the ball 26.

[0031] The first pinch handle 17 and the second pinch handle 19 cooperate with the spring 21 to form an extrusion reset, thereby adjusting the correspondence between the avoidance step 23 and the limit step 24 and the ball 26, so as to facilitate the control of the protrusion of the ball 26 in the placement cavity 25, so that the ball 26 can be pushed into the groove 27, thereby forming a limiting effect, preventing the round rod 7 from falling off after being inserted into the first hole 5 and the second hole 6.

[0032] The working principle of the utility model is:

[0033] When in use, connect the hook of the crane to the hanging ring 12 on the hanging ear mechanism 9 at the top end of the connecting column 4. At this time, select a suitable number of counterweight blocks 2 according to the required counterweight situation, count the corresponding number of counterweight blocks 2 from top to bottom, and penetrate the round rod 7 through the second socket 6 on the corresponding counterweight block 2 and the first socket 5 on the connecting column 4, so that the counterweight block 2 and the connecting column 4 form an upper and lower connection limit, and the upper counterweight block 2 is supported by the connected counterweight block 2. When the connecting column 4 is pulled, the counterweight block 2 above the position penetrated by the round rod 7 is pulled synchronously to carry out a tension inspection test.

[0034] During operation, the first pinch handle 17 and the second pinch handle 19 can be pinched. At this time, the rod body 18 is inserted into the insertion tube 22, so that the avoidance step 23 corresponds to the placement cavity 25, so that the ball 26 can be partially retracted in the avoidance step 23. At this time, the insertion tube 22 can be inserted into the second insertion hole 6 until the baffle 20 fits with the outer wall of the counterweight block 2, and the groove 27 corresponds to the ball 26. At this time, the first pinch handle 17 and the second pinch handle 19 are released, and the rod body 18 is pulled out under the action of the spring 21, so that the ball 26 slides along the slope to the limiting step 24, thereby pushing the ball 26 out and inserting it into the groove 27 to form a limit. At the same time, the ball 26 limits the rod body 18 through the limiting step 24, thereby preventing the round rod 7 from detaching.

[0035] When the hanging ring 12 is worn out after long-term use, the bolt 16 is removed to remove the hanging ear mechanism 9, a new hanging ear mechanism 9 is taken, and the plug block 14 is inserted into the corresponding slot 15 so that the two hanging rings 12 are close together, and then fixed with the bolt 16 to complete the replacement of the hanging ear mechanism 9.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crane tension test device, comprising a bottom plate (1), characterized in that: Counterweight blocks (2) are stacked and placed above the base plate (1), and rectangular holes (3) are provided in the middle of the counterweight blocks (2). Connecting columns (4) matched with the rectangular holes (3) are placed inside the rectangular holes (3), and a first plug hole (5) is provided on the connecting columns (4) corresponding to each counterweight block (2). Second plug holes (6) are provided through the counterweight blocks (2) corresponding to the first plug holes (5). A round rod (7) is inserted into one of the first plug holes (5) and the second plug hole (6), and one end of the round rod (7) is connected to an extrusion limit mechanism (8). The top of the connecting column (4) is connected to an ear hanging mechanism (9). The four corners of the top surface of the base plate (1) are fixedly connected to guide columns (10), which slide through the counterweight blocks (2) and are fixedly connected to limit blocks (11) at their tops.

2. A crane tension test device according to claim 1, characterized in that: The ear hanging mechanism (9) comprises symmetrically arranged hanging rings (12), the bottom edges of the hanging rings (12) being fixedly connected to the sides away from each other with L-shaped pieces (13), the L-shaped pieces (13) being buckled on the top outer side of the connecting column (4), and the bottom inner side of the L-shaped pieces (13) being fixedly connected to the plug blocks (14).

3. A crane tension test device according to claim 2, characterized in that: The insert block (14) is inserted into the inner side of the top of the connecting column (4); a slot (15) for inserting the insert block (14) is provided at the top of the connecting column (4); the hanging rings (12) are fixedly installed by bolts (16); a circular hole for the bolt (16) to pass through is provided on the hanging ring (12); and a nut is threadedly connected to the end of the bolt (16).

4. A crane tension test device according to claim 1, characterized in that: The extrusion limiting mechanism (8) comprises an insertion tube (22), the insertion tube (22) is partially inserted into the second insertion hole (6), the tail end of the insertion tube (22) is fixedly connected to a first pinching handle (17), a rod body (18) adapted thereto is inserted into the insertion tube (22), and the tail end of the rod body (18) is fixedly connected to a second pinching handle (19).

5. A crane tension test device according to claim 4, characterized in that: A positioning baffle (20) is fixedly connected to the outer side of the insertion tube (22).

6. A crane tension test device according to claim 4, characterized in that: A spring (21) sleeved on the outside of the rod body (18) is provided between the second gripping handle (19) and the first gripping handle (17); an avoidance step (23) and a limit step (24) are provided at one end of the rod body (18) inserted into the insertion tube (22); a placement cavity (25) is provided at a position of the insertion tube (22) corresponding to the avoidance step (23) and the limit step (24); a ball (26) is provided in the placement cavity (25); a portion of the ball (26) protrudes from the placement cavity (25) and is embedded in the inner wall of the second insertion hole (6); and a groove (27) adapted to the ball (26) is provided on the inner wall of the second insertion hole (6).

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