CN106289620B - Gear selecting and shifting auxiliary mechanism applied to heavy truck gearbox test bed - Google Patents
Gear selecting and shifting auxiliary mechanism applied to heavy truck gearbox test bed Download PDFInfo
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- CN106289620B CN106289620B CN201610917320.2A CN201610917320A CN106289620B CN 106289620 B CN106289620 B CN 106289620B CN 201610917320 A CN201610917320 A CN 201610917320A CN 106289620 B CN106289620 B CN 106289620B
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- gear
- gear shifting
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
- G01L5/223—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to joystick controls
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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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
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
Abstract
The invention discloses a gear selecting and shifting auxiliary mechanism applied to a heavy truck gearbox test bed, which comprises a gear selecting mechanism and a gear shifting mechanism which are fixed on a framework of the gearbox test bed through bolts, wherein the gear selecting mechanism comprises a gear selecting support frame and the like; the shift mechanism includes a shift bracket and the like. The gear selection and gear shifting of the gear shifting mechanism are realized by driving a pull rod to do linear motion through a pull wire, and the pull rod drives a sector gear to further drive a positioning pin through a connecting rotating rod; the positioning and the selecting and shifting work of gear selecting and gear shifting are completed together through the movement of the air cylinder and the rotation of the positioning pin, the two ends of the pull rod of the gear selecting mechanism and the two ends of the pull rod of the gear shifting mechanism are respectively connected with the force sensor and the displacement sensor, and the data acquisition function of the force and the displacement of gear selecting and gear shifting can be completed while gear selecting and gear shifting are realized.
Description
Technical Field
The invention relates to a gear selecting and shifting auxiliary mechanism, in particular to a gear selecting and shifting auxiliary mechanism for a heavy truck gearbox test bed.
Background
The heavy truck gearbox test bed is mainly used for performance tests, temperature rise tests, reliability endurance tests, research and development tests and the like of gearboxes and drive axles. The existing high-speed gearbox test can only be carried out on a traditional gearbox test bed according to the highest working rotating speed test of the traditional gearbox, the special high-speed test of the electric heavy truck can only be carried out on the whole truck, but the test cannot be verified and checked according to the conditions of design requirements due to the limitation of the space of the whole truck and the actual road conditions. At present, no auxiliary gear selecting and shifting mechanism exists in the society, and the auxiliary gear selecting and shifting mechanism is a mechanism applied to a heavy truck gearbox test bed.
Disclosure of Invention
The invention aims to provide a gear selecting and shifting auxiliary mechanism applied to a heavy truck gearbox test bed, which aims to assist the heavy truck gearbox test bed to realize an automatic gear shifting function, can detect and acquire gear selecting and shifting force and gear selecting and shifting displacement related data of a gearbox, and has guiding significance for test detection of the gearbox and structural design optimization of the gearbox.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a be applied to selection of heavy truck gearbox test bench and keep off complementary unit that shifts, includes all through the selection of bolt fastening on the skeleton of gearbox test bench and keep off mechanism and gearshift:
the gear selecting mechanism comprises a gear selecting support frame, one end of the gear selecting support frame is fixed on the rack through a bolt, the other end of the gear selecting support frame is connected with a gear selecting pull rod fixing sleeve through a bolt, a gear selecting pull rod retaining ring and a fixed gear selecting pull rod are arranged at two ends of the gear selecting pull rod fixing sleeve, two ends of the fixed gear selecting pull rod are respectively connected with a gear selecting displacement sensor and a gear selecting force sensor, the other part of the gear selecting displacement sensor is fixed on the gear selecting pull rod fixing sleeve, and a gear selecting rotating shaft upper support sleeve and a gear selecting rotating shaft lower support sleeve are respectively fixed on one side of a concave surface of the gear selecting pull rod fixing sleeve; the gear selecting rotating shaft upper support sleeve and the gear selecting rotating shaft lower support sleeve are fixed up and down to form a closed space, the gear selecting rotating line bearing penetrates through the line bearing from the closed space, and a sector gear and a fixed bearing are arranged in the space area; the upper end of the gear selecting rotary line bearing is connected with a gear selecting cylinder, the lower end of the gear selecting cylinder is connected with a gear selecting connecting rotating rod, and the gear selecting cylinder at the upper end is fixed on a support sleeve on the gear selecting rotating shaft through a gear selecting cylinder support frame; the other end of the gear selecting force sensor is connected with a gear pull rod connector in a selecting mode, and a gear selecting positioning pin is installed on the gear selecting connecting rotating rod;
the gear shifting mechanism comprises a gear shifting support, the gear shifting support is connected to a rack through a bolt, the upper end of the gear shifting support is connected with a gear shifting main cylinder support frame, the upper end of the gear shifting main cylinder support frame is connected with one end of a main cylinder connecting plate, the other end of the gear shifting main cylinder support frame is connected with a self-calibration coupler, the self-calibration coupler is connected with a gear shifting main cylinder shaft, the gear shifting main cylinder is fixed on a main cylinder frame plate, the main cylinder frame plate is simultaneously fixed on a guide rail seat, a guide rail in a linear guide rail is installed on the back surface of the guide rail seat, a sliding block on the guide rail is fixed on a sliding block seat, and the sliding block seat is fixed on the gear shifting support through a bolt; a gear shifting pull rod fixing sleeve is fixed at the lower end of the guide rail seat, a gear shifting pull rod is arranged on the gear shifting pull rod fixing sleeve, gear shifting pull rod retaining rings are sleeved at two ends of the gear shifting pull rod, the retaining rings are connected on the gear shifting pull rod fixing sleeve through threads, a gear shifting force sensor and a gear shifting displacement sensor are respectively connected at two ends of the gear shifting pull rod, the other end of the gear shifting displacement sensor is fixed on the gear shifting pull rod fixing sleeve, a gear shifting rotating shaft front supporting sleeve and a gear shifting rotating shaft rear supporting sleeve are fixed at the lower end of the gear shifting pull rod fixing sleeve, the gear shifting rotating shaft front supporting sleeve and the gear shifting rotating shaft rear supporting sleeve are mutually fixed to form a closed space, parts such as a gear shifting rotating line bearing and a sector gear fixing bearing are arranged in the closed space, the front end of the gear shifting rotating shaft front supporting sleeve is connected with a gear shifting small cylinder body through a gear shifting cylinder supporting frame, a cylinder shaft is connected with the gear shifting rotating line bearing, and the other end of the gear shifting rotating line bearing is connected with a gear shifting connecting rotating rod, the rotating rod is provided with a gear shifting positioning pin.
The gear selecting support frame is provided with a round hole matched with the rack and the pull rod fixing sleeve, and the pull rod fixing sleeve is provided with holes matched with the pull rod retaining ring, the gear selecting rotating shaft upper support sleeve and the gear selecting rotating shaft lower support sleeve respectively; the support sleeve on the gear selecting rotating shaft is provided with a threaded hole matched with the gear selecting pull rod fixing sleeve, the gear selecting cylinder support frame and the gear selecting rotating shaft lower support sleeve; the lower support sleeve of the gear selecting rotating shaft is provided with a countersunk hole matched with the upper support sleeve of the gear selecting rotating shaft; the gear selecting cylinder support frame is provided with holes which are respectively matched with the gear selecting cylinder and the support sleeve on the gear selecting rotating shaft, the two ends of the gear selecting pull rod are provided with threaded holes which are respectively connected and matched with the gear selecting displacement sensor and the gear selecting force sensor, and the gear selecting connecting rotating rod is provided with a hole for mounting a gear selecting positioning pin.
The gear shifting support is provided with holes matched with the rack and the sliding block seat respectively and threaded holes matched with the gear shifting main cylinder support frame; a hole matched with the gear shifting support and a threaded hole matched with the main cylinder connecting plate are formed in the gear shifting main cylinder supporting frame; the main cylinder connecting plate is provided with a hole matched with the gear shifting main cylinder supporting frame and a threaded hole connected with the self-calibration coupler; the main cylinder frame plate is provided with a hole which can be connected with the gear shifting main cylinder and the guide rail seat; the guide rail seat is provided with a threaded hole for connecting the main cylinder frame plate and the linear guide rail, and is also provided with a hole matched with the gear shifting pull rod fixing sleeve, and the sliding block seat is provided with threaded holes respectively matched with the gear shifting support and the linear guide rail; the gear shifting pull rod fixing sleeve is provided with a threaded hole matched with the guide rail seat, the gear shifting pull rod retaining ring and the gear shifting displacement sensor respectively and a countersunk hole matched with the front support sleeve of the gear shifting rotating shaft and the rear support sleeve of the gear shifting rotating shaft; the front support sleeve of the gear shifting rotating shaft is provided with a support sleeve behind the gear shifting rotating shaft, a gear shifting pull rod fixing sleeve and a threaded hole matched with the small gear shifting cylinder support frame, the support sleeve behind the gear shifting rotating shaft is provided with a counter bore matched with the front support sleeve of the gear shifting rotating shaft and a threaded hole matched with the gear shifting pull rod fixing sleeve, the small gear shifting cylinder support frame is provided with a hole for connecting the gear shifting small cylinder and the front support sleeve of the gear shifting rotating shaft, the gear shifting connecting rotating rod is provided with a hole capable of installing a gear shifting positioning pin, and two ends of the gear shifting pull rod are respectively provided with threaded holes for connecting the gear shifting force sensor and the gear shifting displacement sensor.
The invention has the beneficial effects that: the invention is developed aiming at the working characteristics of the loading test bed of the heavy truck gearbox, can assist the heavy truck gearbox test bed to complete the gear selecting and shifting function of heavy truck gearboxes of different models, can acquire corresponding gear selecting and shifting force and displacement while selecting and shifting gears, and provides data support for gearbox detection;
the gear selection and gear shifting of the gear shifting mechanism are realized by driving a pull rod to do linear motion through a pull wire, and the pull rod drives a sector gear to further drive a positioning pin through a connecting rotating rod; the positioning and the selecting and shifting work of gear selecting and gear shifting are completed together through the movement of the air cylinder and the rotation of the positioning pin, the two ends of the pull rod of the gear selecting mechanism and the two ends of the pull rod of the gear shifting mechanism are respectively connected with the force sensor and the displacement sensor, and the data acquisition function of the force and the displacement of gear selecting and gear shifting can be completed while gear selecting and gear shifting are realized.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic front view of a gear selection mechanism of the present invention;
FIG. 2 is a side view of the gear selection mechanism of the present invention;
FIG. 3 is a front schematic view of the shift mechanism of the present invention;
FIG. 4 is a side elevational view of the shift mechanism of the present invention;
in the figure: a gear selecting support frame-1, a gear selecting cylinder support frame-2, a gear selecting pull rod fixing sleeve-3, a gear selecting pull rod-4, a gear selecting pull rod ring-5, a gear selecting cylinder-6, a gear selecting rotating shaft upper support sleeve-7, a gear selecting rotating shaft lower support sleeve-8, a gear selecting connecting rotating rod-9, a gear selecting rotating line bearing-10, a gear selecting displacement sensor-11, a gear selecting force sensor-12, gear selecting positioning pins-13, 14, a gear selecting pull rod connector-15, a gear shifting support-17, a gear shifting main cylinder support frame-18, a main cylinder connecting plate-19, a self-aligning coupler-20, a main cylinder frame plate-21, a guide rail seat-22, a slider seat-23, a linear guide rail-24, a gear shifting pull rod-25, a gear shifting rotating shaft front support sleeve-26, a rear support sleeve-27 of a shifting rotating shaft, a small shifting cylinder-28, a small shifting cylinder support frame-29, a shifting rotating line bearing-30, a shifting connecting rotating rod-31, a shifting force sensor-32, a shifting displacement sensor-33, shifting positioning pins-34 and 35, a shifting pull rod connector-36, a shifting pull rod retaining ring-37, a shifting main cylinder-38 and a shifting pull rod fixing sleeve-39.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
A gear selecting and shifting auxiliary mechanism applied to a heavy truck gearbox test bed comprises a gear selecting mechanism and a gear shifting mechanism;
referring to fig. 1 and 2, the gear selecting mechanism comprises a gear selecting support frame 1, a gear selecting cylinder support frame 2, a gear selecting pull rod fixing sleeve 3, a gear selecting pull rod 4, a gear selecting pull rod baffle ring 5, a gear selecting cylinder 6, a gear selecting rotating shaft upper support sleeve 7, a gear selecting rotating shaft lower support sleeve 8, a gear selecting connecting rotating rod 9, a gear selecting rotating line bearing 10, a gear selecting displacement sensor 11, a gear selecting force sensor 12, a gear selecting positioning pin 13, a gear selecting positioning pin 14 and a gear selecting pull rod connector 15;
wherein, the gear selecting support frame 1 is provided with round holes matched with the rack and the pull rod fixing sleeve 3, and the pull rod fixing sleeve 3 is provided with holes matched with the pull rod baffle ring 5, the gear selecting rotating shaft upper support sleeve 7 and the gear selecting rotating shaft lower support sleeve 8 respectively; the gear selecting rotating shaft upper supporting sleeve 7 is provided with a threaded hole matched with the gear selecting pull rod fixing sleeve 3, the gear selecting cylinder supporting frame 16 and the gear selecting rotating shaft lower supporting sleeve 8; a counter bore matched with the supporting sleeve 7 on the gear selecting rotating shaft is arranged on the lower supporting sleeve 8 of the gear selecting rotating shaft; the gear selecting cylinder support frame 2 is provided with holes which are respectively matched with the gear selecting cylinder 6 and the support sleeve 7 on the gear selecting rotating shaft, the two ends of the gear selecting pull rod 4 are provided with threaded holes which are respectively connected and matched with the gear selecting displacement sensor 11 and the gear selecting force sensor 12, and the gear selecting connecting rotating rod 9 is provided with holes for mounting gear selecting positioning pins 13 and 14.
Referring to fig. 3 and 4, the shifting mechanism comprises a shifting support 17, a shifting main cylinder support frame 18, a main cylinder connecting plate 19, a self-calibration coupler 20, a main cylinder frame plate 21, a guide rail seat 22, a slider seat 23, a linear guide rail 24, a shifting pull rod 25, a shifting rotating shaft front support sleeve 26, a shifting rotating shaft rear support sleeve 27, a shifting small cylinder 28, a shifting small cylinder support frame 29, a shifting rotating line bearing 30, a shifting connecting rotating rod 31, a shifting force sensor 32, a shifting displacement sensor 33, a shifting positioning pin 34, a shifting positioning pin 35, a shifting pull rod connector 36, a shifting pull rod baffle ring 37, a shifting main cylinder 38 and a shifting pull rod fixing sleeve 39;
the gear shifting support 17 is provided with holes matched with the rack and the slider seat 23 respectively and threaded holes matched with the gear shifting main cylinder support frame 18; a hole matched with the gear shifting support 17 and a threaded hole matched with the main cylinder connecting plate 19 are formed in the gear shifting main cylinder support frame 18; the main cylinder connecting plate 19 is provided with a hole matched with the gear shifting main cylinder supporting frame 18 and a threaded hole connected with the self-calibration coupler 20; the main cylinder frame plate 21 is provided with a hole which can be connected with the gear shifting main cylinder 38 and the guide rail seat 22; the guide rail seat 22 is provided with a threaded hole for connecting the main cylinder frame plate 21 and the linear guide rail 24, and is also provided with a hole matched with the gear shifting pull rod fixing sleeve 39, and the slider seat 23 is provided with a threaded hole respectively matched with the gear shifting support 17 and the linear guide rail 24; the gear shift pull rod fixing sleeve 39 is provided with a threaded hole which is respectively matched with the guide rail seat 22, the gear shift pull rod baffle ring 37 and the gear shift displacement sensor 33, and a countersunk hole which is mutually matched with the gear shift rotating shaft front supporting sleeve 26 and the gear shift rotating shaft rear supporting sleeve 27; the front support sleeve 26 of the gear shifting rotating shaft is provided with a threaded hole which is matched with the rear support sleeve 27 of the gear shifting rotating shaft, the fixed sleeve 39 of the gear shifting pull rod and the small cylinder support frame 29 of the gear shifting, the rear support sleeve 27 of the gear shifting rotating shaft is provided with a countersunk hole which is matched with the front support sleeve 26 of the gear shifting rotating shaft and a threaded hole which is matched with the fixed sleeve 39 of the gear shifting pull rod, the small cylinder support frame 29 of the gear shifting is provided with a hole which is used for connecting the small cylinder 28 of the gear shifting and the front support sleeve 26 of the gear shifting rotating shaft, the gear shifting connecting rotating rod 31 is provided with a hole which can be used for installing the gear shifting positioning pin 34 and 35, and threaded holes which are used for connecting the gear shifting force sensor 32 and the gear shifting displacement sensor 33 are respectively arranged at two ends of the gear shifting pull rod 25.
The gear selecting mechanism and the gear shifting mechanism are fixed on a framework of a gearbox test bed through bolts, in the gear selecting mechanism, one end of a gear selecting support frame 1 is fixed on the bed through bolts, the other end of the gear selecting support frame 1 is connected with a gear selecting pull rod fixing sleeve 3 through bolts, gear selecting pull rod retaining rings 5 are arranged at two ends of the gear selecting pull rod fixing sleeve 3 so as to fix a gear selecting pull rod 4, two ends of the fixed gear selecting pull rod 4 are respectively connected with a gear selecting displacement sensor 11 and a gear selecting force sensor 12, the other part of the gear selecting displacement sensor 11 is fixed on the gear selecting pull rod fixing sleeve 3, and a gear selecting rotating shaft upper support sleeve 7 and a gear selecting rotating shaft lower support sleeve 8 are respectively fixed on one side of a concave surface of the gear selecting pull rod fixing sleeve 3; the gear selecting rotating shaft upper supporting sleeve 7 and the gear selecting rotating shaft lower supporting sleeve 8 are fixed up and down to form a closed space, a gear selecting rotating line bearing 10 penetrates through the line bearing from the closed space, and a sector gear and a fixed bearing are arranged in the space region; the upper end of the gear selecting rotary line bearing 10 is connected with the lower end of the gear selecting cylinder 6 and is connected with the gear selecting connecting rotating rod 9, and the upper end gear selecting cylinder 6 is fixed on the support sleeve 7 on the gear selecting rotating shaft through the gear selecting cylinder support frame 2. The other end of the gear selecting force sensor 12 is connected with a gear pull rod connector 15 in a selecting mode, and gear selecting positioning pins 13 and 14 are installed on the gear selecting connecting rotating rod 9.
Correspondingly, the gear shifting support 17 is connected to the rack through a bolt, the upper end of the gear shifting support is connected with a gear shifting main cylinder support frame 18, the upper end of the gear shifting main cylinder support frame 18 is connected with one end of a main cylinder connecting plate 19, the other end of the gear shifting main cylinder support frame is connected with a self-calibration coupler 20, the self-calibration coupler 20 is connected with a gear shifting main cylinder 38 shaft, the gear shifting main cylinder 38 is fixed on a main cylinder frame plate 21, the main cylinder frame plate 21 is simultaneously fixed on a guide rail seat 22, a guide rail in a linear guide rail 24 is installed on the back surface of the guide rail seat 22, a slide block on the guide rail is fixed on a slide block seat 23, and the slide block seat 22 is fixed on the gear shifting support 17 through a bolt; a gear shifting pull rod fixing sleeve 39 is fixed at the lower end of the guide rail seat 22, a gear shifting pull rod 25 is arranged on the gear shifting pull rod fixing sleeve 39, gear shifting pull rod baffle rings 37 are sleeved at two ends of the gear shifting pull rod 25, the baffle rings are connected on the gear shifting pull rod fixing sleeve 39 through threads, two ends of the gear shifting pull rod 25 are respectively connected with a gear shifting force sensor 32 and a gear shifting displacement sensor 33, the other end of the displacement sensor is fixed on the gear shifting pull rod fixing sleeve 39, a gear shifting rotating shaft front supporting sleeve 26 and a gear shifting shaft rear supporting sleeve 27 are fixed at the lower end of the gear shifting pull rod fixing sleeve 39, the gear shifting shaft front supporting sleeve 26 and the gear shifting shaft rear supporting sleeve 27 are mutually fixed to form a closed space, parts such as a gear shifting rotating line bearing 30 and a sector gear fixing bearing are arranged in the closed space, the front end of the gear shifting shaft front supporting sleeve 26 is connected with a gear shifting small cylinder 28 cylinder body through a gear shifting cylinder supporting frame 29, and the cylinder shaft is connected with the gear shifting rotating line bearing 30, the other end of the shift rotary line bearing 30 is connected to a shift connecting rotating rod 31, on which shift positioning pins 34, 35 are mounted.
During gear selection, the gear selection stay wire drives the gear selection pull rod connector 15, and then drives the gear selection force sensor 12 and the gear selection pull rod 4, the other end of the gear selection pull rod 4 is connected with the gear selection displacement sensor 11, the side surface of the gear selection pull rod is matched with a sector gear installed on the gear selection rotating line bearing 10 in an inner space formed by the rack structure, the gear selection pivot upper support sleeve 7 and the gear selection pivot lower support sleeve 8, the linear motion of the gear selection stay wire is converted into the rotary motion through the mechanism, the gear selection work can be completed through the linear motion of the gear selection cylinder 6, and in the process, the gear selection force sensor 12 and the gear selection displacement sensor 11 can detect the gear selection force and the gear selection displacement.
During gear shifting, the gear shifting pull wire drives the gear shifting pull rod connector 36, so as to drive the gear shifting force sensor 32 and the gear shifting pull rod 25, the other end of the gear shifting pull rod 25 is connected with the gear shifting displacement sensor 33, and the side rack structure is matched with a sector gear which is arranged on the gear shifting rotary wire bearing 30 in an inner space formed by the gear shifting rotary shaft front support sleeve 26 and the gear shifting rotary shaft rear support sleeve 27. The rotation of the gear shifting rotary line bearing 30 drives the gear shifting connecting rotating rod 31 and further drives the gear shifting positioning pins 34 and 35 to perform curvilinear motion. Therefore, the linear motion of the pull wire is converted into the curvilinear motion of the two groups of positioning pins, the gear shifting work of the gear shifting mechanism can be completed through the linear motion of the gear shifting main cylinder 38 and the gear shifting small cylinder 28, and meanwhile, the gear shifting force sensor 32 and the gear shifting displacement sensor 33 can respectively measure the gear shifting force and the gear shifting displacement.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. The utility model provides a be applied to selection of heavily blocking gearbox test bench and keep off complementary unit that shifts, includes all through the selection of bolt fastening on the skeleton of gearbox test bench and keep off mechanism and gearshift, its characterized in that:
the gear selecting mechanism comprises a gear selecting support frame (1), one end of the gear selecting support frame is fixed on the rack through a bolt, the other end of the gear selecting support frame is connected with a gear selecting pull rod fixing sleeve (3) through a bolt, gear selecting pull rod retaining rings (5) and a fixed gear selecting pull rod (4) are arranged at two ends of the gear selecting pull rod fixing sleeve (3), two ends of the fixed gear selecting pull rod (4) are respectively connected with a gear selecting displacement sensor (11) and a gear selecting force sensor (12), wherein the other part of the gear selecting displacement sensor (11) is fixed on the gear selecting pull rod fixing sleeve (3), and a gear selecting rotating shaft upper support sleeve (7) and a gear selecting rotating shaft lower support sleeve (8) are respectively fixed on one side of a concave surface of the gear selecting pull rod fixing sleeve (3); the gear selecting rotating shaft upper supporting sleeve (7) and the gear selecting rotating shaft lower supporting sleeve (8) are simultaneously fixed up and down to form a closed space, the gear selecting rotating line bearing (10) penetrates through the line bearing from the closed space, and a sector gear and a fixed bearing are arranged in the space area; the upper end of the gear selecting rotary line bearing (10) is connected with a gear selecting cylinder (6), the lower end of the gear selecting cylinder is connected with a gear selecting connecting rotating rod (9), and the upper gear selecting cylinder (6) is fixed on a support sleeve (7) on the gear selecting rotating shaft through a gear selecting cylinder support frame (2); the other end of the gear selecting force sensor (12) is connected with a gear pull rod connector (15) in a selecting mode, and gear selecting positioning pins (13, 14) are installed on a gear selecting connecting rotating rod (9);
the linear motion of a gear selecting pull wire of the gear selecting mechanism is converted into rotary motion, the gear selecting work can be completed through the linear motion of a gear selecting cylinder (6), and in the process, a gear selecting force sensor (12) and a gear selecting displacement sensor (11) can detect gear selecting force and gear selecting displacement;
the gear shifting mechanism comprises a gear shifting support (17), the gear shifting support (17) is connected to a rack through bolts, the upper end of the gear shifting support is connected with a gear shifting main cylinder support frame (18), the upper end of the gear shifting main cylinder support frame (18) is connected with one end of a main cylinder connecting plate (19), the other end of the gear shifting main cylinder support frame is connected with a self-calibration coupler (20), the self-calibration coupler (20) is in shaft connection with a gear shifting main cylinder (38), the gear shifting main cylinder (38) is fixed on a main cylinder frame plate (21), the main cylinder frame plate (21) is simultaneously fixed on a guide rail seat (22), a guide rail in a linear guide rail (24) is installed on the back surface of the guide rail seat (22), a sliding block on the guide rail is fixed on a sliding block seat (23), and the sliding block seat (23) is fixed on the gear shifting support (17) through bolts; a gear shifting pull rod fixing sleeve (39) is fixed at the lower end of the guide rail seat (22), a gear shifting pull rod (25) is arranged on the gear shifting pull rod fixing sleeve (39), gear shifting pull rod baffle rings (37) are sleeved at two ends of the gear shifting pull rod fixing sleeve (39) and are connected to the gear shifting pull rod fixing sleeve (39) through threads, a gear shifting force sensor (32) and a gear shifting displacement sensor (33) are respectively connected to two ends of the gear shifting pull rod (25), the other end of the gear shifting displacement sensor (33) is fixed to the gear shifting pull rod fixing sleeve (39), a gear shifting rotating shaft front supporting sleeve (26) and a gear shifting rotating shaft rear supporting sleeve (27) are fixed at the lower end of the gear shifting pull rod fixing sleeve (39), the gear shifting rotating shaft front supporting sleeve (26) and the gear shifting rotating shaft rear supporting sleeve (27) are fixed to form a closed space, a gear shifting rotating line bearing (30) and a sector gear fixing bearing part are arranged in the closed space, the front end of the gear shifting rotating shaft front supporting sleeve (26) is connected with a gear shifting small cylinder body (28) through a gear shifting small cylinder supporting frame (29), the cylinder shaft is connected with a gear shifting rotary line bearing (30), the other end of the gear shifting rotary line bearing (30) is connected with a gear shifting connecting rotating rod (31), and the rotating rod is provided with gear shifting positioning pins (34 and 35);
the gear shifting connecting rotating rod (31) is driven by the rotation of the gear shifting rotating line bearing (30) so as to drive the gear shifting positioning pins (34, 35) to perform curvilinear motion; the linear motion of acting as go-between changes the curvilinear motion of two sets of locating pins into, and the work of shifting of gearshift can be accomplished to the linear motion of rethread shift main cylinder (38) and little cylinder (28) of shifting gears, and power sensor (32) and the displacement sensor (33) of shifting gears can measure the power of shifting gears and shift the displacement respectively simultaneously.
2. The gear selecting and shifting auxiliary mechanism applied to the heavy truck gearbox test bed according to claim 1, is characterized in that: the gear selecting support frame (1) is provided with round holes matched with the rack and the pull rod fixing sleeve (3), and the pull rod fixing sleeve (3) is provided with holes matched with the pull rod gear ring (5), the gear selecting rotating shaft upper support sleeve (7) and the gear selecting rotating shaft lower support sleeve (8) respectively; the gear selecting rotating shaft upper supporting sleeve (7) is provided with a threaded hole matched with the gear selecting pull rod fixing sleeve (3), the gear selecting cylinder supporting frame (16) and the gear selecting rotating shaft lower supporting sleeve (8); a counter bore matched with the support sleeve (7) on the gear selecting rotating shaft is formed on the lower support sleeve (8) of the gear selecting rotating shaft; the gear selecting cylinder support frame (2) is provided with holes which are respectively matched with the gear selecting cylinder (6) and a support sleeve (7) on a gear selecting rotating shaft, both ends of the gear selecting pull rod (4) are provided with threaded holes which are respectively connected and matched with the gear selecting displacement sensor (11) and the gear selecting force sensor (12), and the gear selecting connecting rotating rod (9) is provided with holes for mounting gear selecting positioning pins (13 and 14).
3. The gear selecting and shifting auxiliary mechanism applied to the heavy truck gearbox test bed according to claim 1, is characterized in that: the gear shifting support (17) is provided with holes respectively matched with the rack and the sliding block seat (23) and threaded holes matched with the gear shifting main cylinder support frame (18); a hole matched with the gear shifting support (17) and a threaded hole matched with the main cylinder connecting plate (19) are formed in the gear shifting main cylinder support frame (18); the main cylinder connecting plate (19) is provided with a hole matched with the gear shifting main cylinder supporting frame (18) and a threaded hole connected with the self-calibration coupler (20); the main cylinder frame plate (21) is provided with a hole which can be connected with a shifting main cylinder (38) and a guide rail seat (22); the guide rail seat (22) is provided with a threaded hole for connecting the main cylinder frame plate (21) and the linear guide rail (24), and is also provided with a hole matched with the gear shifting pull rod fixing sleeve (39), and the slider seat (23) is provided with a threaded hole respectively matched with the gear shifting support (17) and the linear guide rail (24); the gear shifting pull rod fixing sleeve (39) is provided with a threaded hole which is matched with the guide rail seat (22), the gear shifting pull rod baffle ring (37) and the gear shifting displacement sensor (33) respectively, and a countersunk hole which is matched with the gear shifting rotating shaft front supporting sleeve (26) and the gear shifting rotating shaft rear supporting sleeve (27) mutually; the front support sleeve (26) of the gear shifting rotating shaft is provided with a threaded hole matched with the rear support sleeve (27) of the gear shifting rotating shaft, a gear shifting pull rod fixing sleeve (39) and a gear shifting small cylinder support frame (29), the rear support sleeve (27) of the gear shifting rotating shaft is provided with a countersunk hole matched with the front support sleeve (26) of the gear shifting rotating shaft and a threaded hole matched with the gear shifting pull rod fixing sleeve (39), the gear shifting small cylinder support frame (29) is provided with a hole for connecting the gear shifting small cylinder (28) and the front support sleeve (26) of the gear shifting rotating shaft, the gear shifting connecting rotating rod (31) is provided with a hole capable of installing a gear shifting positioning pin (34 and 35), and two ends of the gear shifting pull rod (25) are respectively provided with threaded holes for connecting a gear shifting force sensor (32) and a gear shifting displacement sensor (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917320.2A CN106289620B (en) | 2016-10-20 | 2016-10-20 | Gear selecting and shifting auxiliary mechanism applied to heavy truck gearbox test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610917320.2A CN106289620B (en) | 2016-10-20 | 2016-10-20 | Gear selecting and shifting auxiliary mechanism applied to heavy truck gearbox test bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106289620A CN106289620A (en) | 2017-01-04 |
| CN106289620B true CN106289620B (en) | 2022-07-01 |
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| CN206114178U (en) * | 2016-10-20 | 2017-04-19 | 安徽会合智能设备有限公司 | Be applied to selection that heavily blocks gearbox test stand frame and keep off complementary unit that shifts |
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| CN206114178U (en) * | 2016-10-20 | 2017-04-19 | 安徽会合智能设备有限公司 | Be applied to selection that heavily blocks gearbox test stand frame and keep off complementary unit that shifts |
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| CN106289620A (en) | 2017-01-04 |
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