CN113701969B - Drilling rod spring compression performance check out test set - Google Patents
Drilling rod spring compression performance check out test set Download PDFInfo
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- CN113701969B CN113701969B CN202111252464.8A CN202111252464A CN113701969B CN 113701969 B CN113701969 B CN 113701969B CN 202111252464 A CN202111252464 A CN 202111252464A CN 113701969 B CN113701969 B CN 113701969B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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Abstract
The invention discloses a device for detecting the compression performance of a drill rod spring, which comprises a main box body, wherein an elastic force feedback mechanism is arranged in the main box body, an elastic force display mechanism is arranged on the front side of the elastic force feedback mechanism, and a deformation quantity indicating mechanism is arranged on the upper side of the main box body; according to the invention, the elastic force of the detection spring is balanced with the elastic force of the drill rod spring, so that the support plate moves downwards, the pointer is driven to rotate to a numerical value corresponding to the elastic force of the detection spring, the elastic value of the drill rod spring is displayed, meanwhile, the compression amount of the drill rod spring is displayed through the number indicating plate, and the compression performance of the spring is judged by comparing the relationship between the compression amount of the drill rod spring and the elastic value corresponding to the elastic force in a plurality of detection results, so that the detection process is simple and convenient to operate, the detection efficiency is improved, and the device is simple in structure and convenient to popularize in a large range.
Description
Technical Field
The invention relates to the technical field of spring detection equipment, in particular to a device for detecting the compression performance of a spring of a drill rod.
Background
The drill rod spring mainly plays a dual role in protecting the drill rod and the main machine, and the drill rod can be vibrated at a higher frequency in the drilling process, so that the drill rod spring is required to have better compression performance in production, and the compression performance detection of the drill rod spring after production is particularly important.
And present spring compression performance check out test set general structure all is comparatively complicated, not only causes complex operation, still makes its cost itself expensive, and manufacturing cost is high, is unfavorable for promoting on a large scale, and some simple structure's spring compression performance check out test set do not possess the function of zeroing elasticity display module fast again to need zero setting operation to equipment before detecting, influence detection efficiency.
Disclosure of Invention
The invention aims to provide a device for detecting the compression performance of a spring of a drill rod, which is used for overcoming the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the device for detecting the compression performance of the spring of the drill rod comprises a main box body, wherein an elastic force feedback mechanism is arranged in the main box body, an elastic force display mechanism is arranged on the front side of the elastic force feedback mechanism, and a deformation quantity indicating mechanism is arranged on the upper side of the main box body;
the elastic force feedback mechanism comprises a supporting plate arranged in the main box body, a rack is fixed on the lower end face of the supporting plate, a driven straight gear meshed with the rack is arranged on the right side of the rack, and the elastic force feedback mechanism is used for feeding back the elastic force during detection of a spring of the drill rod;
the elastic force display mechanism comprises a driven friction wheel arranged in the main box body, a pointer shaft is in spline fit with the inner side of the driven friction wheel, a clockwork spring is arranged on the front side of the driven friction wheel, a pointer fixed at the tail end of the front side of the pointer shaft is arranged on the front side of the clockwork spring, and the elastic force display mechanism is used for displaying the elastic force of the drill rod spring during detection and the zero setting of the pointer;
the deformation quantity indicating mechanism is used for displaying the quantity of the deformation quantity of the spring of the drill rod.
Preferably, the main tank body is internally provided with a supporting plate cavity with an upward opening, the lower side of the supporting plate cavity is communicated with a rack cavity, the right side of the rack cavity is communicated with a driven straight gear cavity, the front side of the driven straight gear cavity is provided with a friction wheel cavity, a pair of sliding pairs are formed between the supporting plate and the supporting plate cavity, a pair of sliding pairs are formed between the rack and the rack cavity, a detection spring is fixed between the lower end surface of the supporting plate and the lower end wall of the supporting plate cavity, a friction wheel shaft is rotationally matched with the front end wall of the driven straight gear cavity, the front part of the friction wheel shaft extends forwards into the friction wheel cavity, the rear part extends backwards into the driven straight gear cavity, the driven straight gear is fixed at the tail end of the rear side of the friction wheel shaft, and the tail end of the front side of the friction wheel shaft is fixed with a driving friction wheel which can be abutted against the rear end surface of the driven friction wheel, and the elastic force of the drill rod spring is converted into the number of rotating turns of the driving friction wheel through the elastic force balance of the detection spring and the drill rod spring.
Preferably, a spring cavity is arranged on the front side of the friction wheel cavity, an elastic number indicating cavity with a forward opening is arranged on the front side of the spring cavity, the pointer shaft is installed in the front end wall of the friction wheel cavity through a bearing, the rear side part of the pointer shaft extends backwards into the friction wheel cavity, the front side part of the pointer shaft extends forwards and penetrates through the spring cavity to the elastic number indicating cavity, a shaft sleeve in spline fit with the pointer shaft is fixed on the front end face of the driven friction wheel, a magnetic shaft sleeve seat is in running fit with the tail end of one side of the shaft sleeve, which is close to the spring cavity, an electromagnet in running fit with the pointer shaft is fixed in the front end wall of the friction wheel cavity, a reset spring is fixed between the electromagnet and the magnetic shaft sleeve seat, and the driven friction wheel and the driving friction wheel are not abutted between detection, so that the self weight of a drill rod spring is prevented from influencing the indicated value of the pointer, the steps of zero setting are reduced, and the detection efficiency is improved.
Preferably, the clockwork spring is located the clockwork spring intracavity, clockwork spring one end is fixed in on the pointer axle excircle face, the other end is fixed in on the clockwork spring intracavity wall, be carved with on the elasticity registration chamber diapire with pointer axle is central circumference distributes's figure, and its numerical value represents the elasticity of detection spring utilizes the elasticity of clockwork spring for after the detection is accomplished, the pointer can resume initial position fast.
Preferably, the deformation amount indicating mechanism includes a central shaft fixed to an upper end surface of the support plate, a slide block cavity is arranged in the central shaft, a number indicating plate cavity with a right opening is communicated with the right side of the slide block cavity, the number plate cavity is also provided with an upward opening, the slide block cavity is matched with a slide block which extends rightwards into the number plate cavity in a sliding way, a number display plate is fixed on the right end face of the sliding block, a pair of sliding pairs is formed between the number display plate and the number display plate cavity, a screw rod is rotationally matched with the lower end wall of the slide block cavity, the upper part of the screw rod extends upwards to penetrate through the slide block cavity to the outside of the central shaft, the screw rod is in threaded fit connection with the slide block, through the number display plate capable of moving up and down, when the initial states of the drill rod springs at different heights are detected, the upper end faces of the pressing plates can point to the numbers "" on the number display plate.
Preferably, an annular rack cavity which is annularly arranged with the supporting plate cavity as the center is arranged outside the supporting plate cavity, an annular seat which is annularly arranged by taking the supporting plate cavity as a center is rotationally matched with the lower end wall of the annular rack cavity, the upper part of the annular seat extends upwards into the annular rack cavity, an annular rack which is annularly arranged by taking the supporting plate cavity as a center is fixed on the upper end surface of the annular seat, two driven gear cavities which are symmetrical left and right by taking the supporting plate cavity as a center are communicated and arranged outside the annular rack cavity, a screw shaft is rotationally matched with the upper end wall of the driven gear cavity, the upper side part of the screw shaft extends upwards to the outside of the main box body, the lower side part of the screw shaft extends downwards to the inside of the driven gear cavity, and a driven gear meshed with the annular rack is fixed at the tail end of the lower side of the screw rod shaft, and the annular rack is annularly arranged, so that the driven gears on the left side and the right side can rotate simultaneously.
Preferably, two guide rods which are symmetrical front and back with the supporting plate cavity as the center are fixed on the upper end face of the main box body, a pressing plate which is in sliding fit with the guide rods is arranged on the upper side of the main box body, a central shaft through cavity which is communicated up and down is arranged in the pressing plate, the pressing plate and the screw rod shaft can be in threaded fit connection, a driving gear cavity is communicated with the right side of the driven gear cavity on the right side, a motor is fixed in the lower end wall of the driving gear cavity, a motor shaft which extends upwards into the driven gear cavity is fixed on the upper end face of the motor, a driving gear which is meshed with the driven gear is fixed at the tail end of the upper side of the motor shaft, and the pressing plate can move up and down by driving the screw rod shaft to rotate through the motor, so that the purpose of compressing the spring of the drill rod is achieved.
The invention has the beneficial effects that:
1. according to the invention, the elastic force of the detection spring is balanced with the elastic force of the drill rod spring, so that the support plate moves downwards, the pointer is driven to rotate to a numerical value corresponding to the elastic force of the detection spring, the elastic value of the drill rod spring is displayed, meanwhile, the compression amount of the drill rod spring is displayed through the number indicating plate, and the compression performance of the spring is judged by comparing the relationship between the compression amount of the drill rod spring and the elastic value corresponding to the elastic force in a plurality of detection results, so that the detection process is simple and convenient to operate, the detection efficiency is improved, and the device is simple in structure and convenient to popularize in a large range.
2. According to the invention, before the detection is started, the driven friction wheel is disengaged from the driving friction wheel, so that the numerical value pointed by the pointer is not influenced by the self weight of the drill rod spring in the process of placing the drill rod spring on the supporting plate, the zero setting step is reduced, the detection time is shortened, and the detection efficiency is improved.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the overall structure of a device for detecting the compression performance of a spring of a drill rod according to the present invention;
FIG. 3 is a schematic view of A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic right side view of the counting plate assembly of FIG. 2 in accordance with the present invention;
FIG. 5 is a schematic front view of the spring indicating chamber assembly of FIG. 3 in accordance with the present invention;
FIG. 6 is an enlarged partial schematic view of the driven friction wheel assembly of FIG. 3 in accordance with the present invention.
In the figure:
10. a main box body; 11. a support plate cavity; 12. a rack cavity; 13. a drive gear cavity; 14. an annular rack cavity; 15. a driven gear cavity; 16. a driven spur gear chamber; 17. a friction wheel cavity; 18. a spring chamber; 20. a support plate; 21. a rack; 22. a driven spur gear; 23. detecting a spring; 24. a friction wheel shaft; 25. a driving friction wheel; 30. a motor; 31. a motor shaft; 32. a driving gear; 33. an annular rack; 34. a driven gear; 35. an annular seat; 36. a screw shaft; 37. pressing a plate; 38. a guide bar; 39. the central shaft is communicated with the cavity; 40. a central shaft; 41. a slider cavity; 42. a slider; 43. a screw rod; 44. a number display board; 45. a number plate cavity; 50. a driven friction wheel; 51. a clockwork spring; 52. a shaft sleeve; 53. a magnetic shaft sleeve seat; 54. an electromagnet; 55. a return spring; 56. a pointer shaft; 57. a pointer; 58. the elasticity shows the chamber.
Detailed Description
For purposes of making the objects and advantages of the present invention more apparent, the following detailed description of the invention, taken in conjunction with the examples, should be understood that the following text is only intended to describe one or several specific embodiments of the invention, and not to strictly limit the scope of the invention as specifically claimed, and as used herein, the terms up, down, left and right are not limited to their strict geometric definitions, but rather include tolerances for reasonable and inconsistent machining or human error, the following detailed description of which is provided for:
referring to fig. 1-6, the device for detecting the compression performance of the spring of the drill rod according to the embodiment of the invention comprises a main box body 10, wherein an elastic force feedback mechanism is arranged in the main box body 10, an elastic force display mechanism is arranged on the front side of the elastic force feedback mechanism, and a deformation quantity indicating mechanism is arranged on the upper side of the main box body 10;
the elastic force feedback mechanism comprises a supporting plate 20 arranged in the main box body 10, a rack 21 is fixed on the lower end face of the supporting plate 20, a driven straight gear 22 meshed with the rack 21 is arranged on the right side of the rack 21, and the elastic force feedback mechanism is used for feeding back the elastic force during detection of a drill rod spring;
the elastic force display mechanism comprises a driven friction wheel 50 arranged in the main box body 10, a pointer shaft 56 is in spline fit in the driven friction wheel 50, a spring 51 is arranged on the front side of the driven friction wheel 50, a pointer 57 fixed at the tail end of the front side of the pointer shaft 56 is arranged on the front side of the spring 51, and the elastic force display mechanism is used for displaying the elastic force during detection of the drill rod spring and zero setting of the pointer 57;
the deformation quantity indicating mechanism is used for displaying the quantity of the deformation quantity of the spring of the drill rod.
Beneficially, a supporting plate cavity 11 with an upward opening is arranged in the main box 10, a rack cavity 12 is communicated with the lower side of the supporting plate cavity 11, a driven straight gear cavity 16 is communicated with the right side of the rack cavity 12, a friction wheel cavity 17 is arranged on the front side of the driven straight gear cavity 16, a pair of sliding pairs is formed between the supporting plate 20 and the supporting plate cavity 11, a pair of sliding pairs is formed between the rack 21 and the rack cavity 12, a detection spring 23 is fixed between the lower end surface of the supporting plate 20 and the lower end wall of the supporting plate cavity 11, a friction wheel shaft 24 is rotationally matched in the front end wall of the driven straight gear cavity 16, the front side part of the friction wheel shaft 24 extends forwards into the friction wheel cavity 17, the rear side part extends backwards into the driven straight gear cavity 16, the straight gear 22 is fixed at the rear end of the friction wheel shaft 24, a driving friction wheel 25 capable of abutting against the rear end surface of the driven friction wheel 50 is fixed at the front end of the friction wheel shaft 24, the elastic force of the drill rod spring is converted into the distance of downward movement of the rack 21 through the balance of the elastic force of the detection spring 23 and the drill rod spring, and thus, the number of turns of the rotation of the driving friction wheel 25.
Advantageously, the front side of the friction wheel cavity 17 is provided with a spring cavity 18, the front side of the spring cavity 18 is provided with a spring number indicating cavity 58 with a forward opening, the pointer shaft 56 is mounted in the front end wall of the friction wheel cavity 17 through a bearing, the rear side part of the pointer shaft 56 extends backwards into the friction wheel cavity 17, the front side part extends forwards and penetrates through the spring cavity 18 to the spring number indicating cavity 58, the front end surface of the driven friction wheel 50 is fixed with a shaft sleeve 52 in spline fit with the pointer shaft 56, the end of the shaft sleeve 52 close to one side of the spring cavity 18 is rotationally matched with a magnetic shaft sleeve seat 53, the front end wall of the friction wheel cavity 17 is fixed with an electromagnet 54 in rotational fit with the pointer shaft 56, the driven friction wheel 50 is meshed with or not meshed with the driving friction wheel 25 under the control of the power failure of the electromagnet 54, a return spring 55 is fixed between the electromagnet 54 and the magnetic shaft sleeve seat 53, by not abutting the driven friction wheel 50 and the driving friction wheel 25 during detection, the influence of the dead weight of a drill rod spring on the numerical value indicated by the pointer 57 is avoided, the zero setting steps are reduced, and the detection efficiency is improved.
Advantageously, the spring 51 is located in the spring chamber 18, one end of the spring 51 is fixed on the outer circumferential surface of the pointer shaft 56, the other end of the spring 51 is fixed on the inner wall of the spring chamber 18, the bottom wall of the spring indication chamber 58 is engraved with numbers distributed circumferentially around the pointer shaft 56, the numbers represent the spring force of the detection spring 23, and the pointer 57 can quickly return to the initial position after the detection is completed by the spring force of the spring 51.
Beneficially, the deformation quantity indicating mechanism includes a central shaft 40 fixed on the upper end surface of the support plate 20, a slider cavity 41 is arranged in the central shaft 40, a number plate cavity 45 with a right opening is communicated with the right side of the slider cavity 41, the number plate cavity 45 is further provided with an upward opening, a slider 42 extending to the right into the number plate cavity 45 is slidably fitted in the slider cavity 41, a number plate 44 is fixed on the right end surface of the slider 42, a pair of sliding pairs is formed between the number plate 44 and the number plate cavity 45, a lead screw 43 is rotatably fitted in the lower end wall of the slider cavity 41, the upper side part of the lead screw 43 extends upwards to penetrate through the slider cavity 41 to the outside of the central shaft 40, the lead screw 43 and the slider 42 are connected in a threaded fit manner, the number plate 44 can be driven to move upwards and downwards by rotating the lead screw 43, so that when the initial states of drill rod springs with different heights are detected, the upper end surface of the pressure plate 37 can point to the number "0" on the number plate 44.
Advantageously, an annular rack cavity 14 annularly arranged around the support plate cavity 11 is provided outside the support plate cavity 11, an annular seat 35 annularly arranged around the support plate cavity 11 is rotatably fitted in a lower end wall of the annular rack cavity 14, an upper portion of the annular seat 35 extends upward into the annular rack cavity 14, an annular rack 33 annularly arranged around the support plate cavity 11 is fixed on an upper end face of the annular seat 35, two driven gear cavities 15 bilaterally symmetrical around the support plate cavity 11 are communicated outside the annular rack cavity 14, a lead screw shaft 36 is rotatably fitted in an upper end wall of the driven gear cavity 15, an upper portion of the lead screw shaft 36 extends upward outside the main case 10, a lower portion of the lead screw shaft 36 extends downward into the driven gear cavity 15, a driven gear 34 engaged with the annular rack 33 is fixed at a lower end of the lead screw shaft 36, an annular rack 33 is provided in an annular shape so that the driven gears 34 on the left and right sides can be rotated simultaneously.
Advantageously, two guide rods 38 are fixed on the upper end surface of the main box 10, the guide rods 38 are symmetrical back and forth around the support plate cavity 11, a pressing plate 37 is slidably fitted on the upper side of the main box 10, a central through cavity 39 is provided in the pressing plate 37, the pressing plate 37 and the screw shaft 36 can be connected in a threaded fit manner, the upper end portion of the screw shaft 36 is a smooth rod without threads, so that the screw shaft 36 can be rapidly inserted into the pressing plate 37 until the threaded portion of the screw shaft 36 abuts against the lower end surface of the pressing plate 37, the right side of the driven gear cavity 15 on the right side is communicated with a driving gear cavity 13, a motor 30 is fixed in the lower end wall of the driving gear cavity 13, a motor shaft 31 extending upwards into the driven gear cavity 15 is fixed on the upper end surface of the motor 30, and a driving gear 32 engaged with the driven gear 34 is fixed on the upper end of the motor shaft 31, the motor 30 drives the screw shaft 36 to rotate, so that the pressure plate 37 can move up and down, and the purpose of compressing the drill rod spring is achieved.
The invention relates to a device for detecting the compression performance of a spring of a drill rod, which comprises the following working procedures:
in the initial state of the invention, the detection spring 23 is in a relaxed state, the upper end surface of the support plate 20 is flush with the upper end surface of the main box body 10, the spring 51 is in a relaxed state, the electromagnet 54 is in a power-off state, the return spring 55 is in a relaxed state, the driven friction wheel 50 is not abutted with the driving friction wheel 25, the press plate 37 is positioned at the tail end of the upper side of the screw shaft 36, and the polished rod part at the tail end of the upper side of the screw shaft 36 is positioned in the press plate 37.
When the drill rod spring detection is required, the pressure plate 37 is lifted upwards, and the drill rod spring is sleeved on the central shaft 40.
The pressing plate 37 is returned to the original position, the upper end of the screw shaft 36 and the upper end of the guide bar 38 are inserted into the pressing plate 37, and the central shaft 40 passes through the central shaft through cavity 39.
At this moment, due to the dead weight of the drill rod spring, the support plate 20 moves downwards for a short distance, so that the rack 21 moves downwards for a short distance, the driven straight gear 22 is driven to rotate, the friction gear shaft 24 is driven to rotate, the driving friction wheel 25 is driven to rotate, and the driven friction wheel 50 is not abutted to the driving friction wheel 25, so that the driving friction wheel 25 rotates without driving the driven friction wheel 50 to rotate.
At this time, the motor 30 is started, so that the motor shaft 31 rotates, thereby driving the driving gear 32 to rotate, thereby rotating the driven gear 34 on the right side, and the driven gear 34 on the left side rotates simultaneously through the annular rack 33, thereby driving the screw shafts 36 on the left and right sides to rotate simultaneously, thereby driving the pressing plate 37 to move downward.
When the lower end surface of the pressure plate 37 touches the drill rod spring, the motor 30 is turned off, so that the downward movement of the pressure plate 37 is stopped.
At this time, the electromagnet 54 is activated, so that the electromagnet 54 electrically repels the magnetic shaft sleeve seat 53, and further, the magnetic shaft sleeve seat 53 moves backward against the pulling force of the return spring 55, thereby driving the shaft sleeve 52 to move backward, so that the driven friction wheel 50 moves backward to abut against the driving friction wheel 25, and at this time, the pointer 57 points to the number "0" on the bottom wall of the elastic number indicating cavity 58.
At this time, the screw 43 is rotated, so that the slider 42 moves downward, and the number plate 44 is driven to move downward, and the upper end surface of the pressing plate 37 is flush with the number "0" on the number plate 44.
Then, the motor 30 is restarted to move the pressing plate 37 downward to compress the drill rod spring, so that the drill rod spring exerts a downward elastic force on the support plate 20, and further, the support plate 20 moves downward to compress the detection spring 23, so that the elastic force generated by the detection spring 23 is balanced with the elastic force of the drill rod spring.
The backup pad 20 moves down to make the rack 21 move down, thereby driving the driven spur gear 22 to rotate, thereby making the friction wheel shaft 24 rotate, and then driving the driving friction wheel 25 to rotate, under the frictional force action between the driving friction wheel 25 and the driven friction wheel 50, making the driving friction wheel 25 drive the driven friction wheel 50 to rotate, and then making the pointer shaft 56 rotate, thereby driving the pointer 57 to rotate, when the pointer 57 points to the numerical value of the next unit, the numerical value is the elasticity of the drill rod spring, at this moment, the motor 30 is closed.
The number of the upper end face of the pressure plate 37 flush with the dial plate 44 is recorded, and this number is the amount of deformation of the drill rod spring.
The motor 30 is then restarted so that the platen 37 continues to move downwardly, and when the pointer 57 is rotated to point to the next unit of value, the motor 30 is again turned off, at which point the number is recorded that is now flush with the upper end surface of the platen 37 and with the dial 44.
And the detection data are recorded repeatedly, and the relation between the elastic force of the spring of the drill rod and the deformation quantity of the spring in each detection is compared, so that the compression performance of the spring is judged.
During the rotation of the pointer shaft 56, the pointer shaft 56 drives the spring 51 to store power.
After the detection is finished, the electromagnet 54 is turned off, so that the electromagnet 54 is powered off, the magnetic sleeve seat 53 moves forward to the initial position under the elastic force of the return spring 55, the driven friction wheel 50 moves forward to be separated from the abutting joint with the driving friction wheel 25, the pointer shaft 56 rotates reversely to the initial position under the torsion force of the spring 51, and the pointer 57 rotates reversely to point to the number "0".
At this point, the motor 30 is started in reverse, causing the motor shaft 31 to rotate in reverse, and the pressure plate 37 moves upward to the initial position, lifting the pressure plate 37 upward, and removing the drill rod spring.
It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.
Claims (4)
1. The utility model provides a drilling rod spring compression performance check out test set, includes main box (10), its characterized in that: an elastic force feedback mechanism is arranged in the main box body (10), an elastic force display mechanism is arranged on the front side of the elastic force feedback mechanism, and a deformation quantity indicating mechanism is arranged on the upper side of the main box body (10);
the elastic force feedback mechanism comprises a supporting plate (20) arranged in the main box body (10), a rack (21) is fixed on the lower end face of the supporting plate (20), a driven straight gear (22) meshed with the rack (21) is arranged on the right side of the rack (21), and the elastic force feedback mechanism is used for feeding back the elastic force during detection of a drill rod spring;
the elastic force display mechanism comprises a driven friction wheel (50) arranged in the main box body (10), a pointer shaft (56) is in spline fit in the driven friction wheel (50), a spring (51) is arranged on the front side of the driven friction wheel (50), a pointer (57) fixed at the tail end of the front side of the pointer shaft (56) is arranged on the front side of the spring (51), and the elastic force display mechanism is used for displaying the elastic force of the drill rod spring during detection and zeroing of the pointer (57);
the deformation quantity indicating mechanism is used for displaying the quantity of the deformation quantity of the spring of the drill rod;
the improved structure is characterized in that a supporting plate cavity (11) with an upward opening is arranged in the main box body (10), a rack cavity (12) is communicated with the lower side of the supporting plate cavity (11), a driven straight gear cavity (16) is communicated with the right side of the rack cavity (12), a friction wheel cavity (17) is arranged on the front side of the driven straight gear cavity (16), a pair of sliding pairs are formed between the supporting plate (20) and the supporting plate cavity (11), a pair of sliding pairs are formed between the rack (21) and the rack cavity (12), a detection spring (23) is fixed between the lower end face of the supporting plate (20) and the lower end wall of the supporting plate cavity (11), a friction wheel shaft (24) is rotationally matched with the front end wall of the driven straight gear cavity (16) in a rotating mode, the front side part of the friction wheel shaft (24) extends forwards into the friction wheel cavity (17), and the rear side part extends backwards into the driven straight gear cavity (16), the driven straight gear (22) is fixed at the rear end of the friction wheel shaft (24), and a driving friction wheel (25) capable of being abutted against the rear end face of the driven friction wheel (50) is fixed at the front end of the friction wheel shaft (24);
a spring cavity (18) is arranged at the front side of the friction wheel cavity (17), an elastic number indicating cavity (58) with a forward opening is arranged at the front side of the spring cavity (18), the pointer shaft (56) is arranged in the front end wall of the friction wheel cavity (17) through a bearing, the rear part of the pointer shaft (56) extends backwards into the friction wheel cavity (17), the front part extends forwards to penetrate through the spring cavity (18) into the elastic number indicating cavity (58), a shaft sleeve (52) which is in spline fit with the pointer shaft (56) is fixed on the front end surface of the driven friction wheel (50), the tail end of the shaft sleeve (52) close to one side of the spring cavity (18) is matched with a magnetic shaft sleeve seat (53) in a rotating way, an electromagnet (54) which is rotationally matched with the pointer shaft (56) is fixed in the front end wall of the friction wheel cavity (17), a return spring (55) is fixed between the electromagnet (54) and the magnetic shaft sleeve seat (53);
the clockwork spring (51) is located in the clockwork chamber (18), clockwork spring (51) one end is fixed in on the outer disc of pointer axle (56), the other end is fixed in on the clockwork chamber (18) inner wall, be carved with on elasticity registration chamber (58) diapire and use pointer axle (56) is central circumference distribution's digit, and its numerical value represents the elasticity of detection spring (23).
2. The drill rod spring compression performance detection apparatus of claim 1, wherein: the deformation quantity indicating mechanism comprises a central shaft (40) fixed on the upper end surface of the supporting plate (20), a slide block cavity (41) is arranged in the central shaft (40), a number plate cavity (45) with a right opening is communicated and arranged at the right side of the slide block cavity (41), the number plate cavity (45) is also provided with an upward opening, the slide block cavity (41) is in sliding fit with a slide block (42) which extends to the right into the number plate cavity (45), a number displaying plate (44) is fixed on the right end face of the sliding block (42), a pair of sliding pairs is formed between the number displaying plate (44) and the number displaying plate cavity (45), a screw rod (43) is rotationally matched with the lower end wall of the slide block cavity (41), the upper side part of the screw rod (43) extends upwards to penetrate through the slide block cavity (41) to the outside of the central shaft (40), the screw rod (43) is in threaded fit connection with the sliding block (42).
3. The drill rod spring compression performance detection apparatus of claim 2, wherein: an annular rack cavity (14) which is annularly arranged with the supporting plate cavity (11) as the center is arranged on the outer side of the supporting plate cavity (11), an annular seat (35) which is annularly arranged with the supporting plate cavity (11) as the center is rotationally matched with the lower end wall of the annular rack cavity (14), the upper side part of the annular seat (35) upwards extends into the annular rack cavity (14), an annular rack (33) which is annularly arranged with the supporting plate cavity (11) as the center is fixed on the upper end surface of the annular seat (35), two driven gear cavities (15) which are bilaterally symmetrical with the supporting plate cavity (11) as the center are communicated with the outer side of the annular rack cavity (14), a lead screw shaft (36) is rotationally matched with the upper end wall of the driven gear cavity (15), the upper side part of the lead screw shaft (36) upwards extends to the outside of the main box body (10), and the lower side part downwards extends into the driven gear cavity (15), and a driven gear (34) meshed with the annular rack (33) is fixed at the tail end of the lower side of the screw shaft (36).
4. The drill rod spring compression performance detection apparatus of claim 3, wherein: the upper end face of the main box body (10) is fixed with two guide rods (38) which are symmetrical front and back by taking the supporting plate cavity (11) as a center, a pressing plate (37) in sliding fit with the guide rods (38) is arranged on the upper side of the main box body (10), a central shaft through cavity (39) which is through up and down is arranged in the pressing plate (37), the pressing plate (37) and the screw rod shaft (36) can be connected in a threaded fit mode, a driving gear cavity (13) is communicated with the right side of the driven gear cavity (15) on the right side, a motor (30) is fixed in the lower end wall of the driving gear cavity (13), a motor shaft (31) which extends upwards into the driven gear cavity (15) is fixed on the upper end face of the motor (30), and a driving gear (32) which is meshed with the driven gear (34) is fixed at the tail end of the upper side of the motor shaft (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111252464.8A CN113701969B (en) | 2021-10-27 | 2021-10-27 | Drilling rod spring compression performance check out test set |
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| Application Number | Priority Date | Filing Date | Title |
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