CN111993310A

CN111993310A - Military armored vehicle maintenance positioning system

Info

Publication number: CN111993310A
Application number: CN202010859065.7A
Authority: CN
Inventors: 王晖; 何鹏; 孙万国; 朱连军; 孙俊峰; 张宝生
Original assignee: Academy of Armored Forces of PLA
Current assignee: Academy of Armored Forces of PLA
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2020-11-27
Anticipated expiration: 2040-08-24
Also published as: CN111993310B

Abstract

The invention belongs to the technical field of vehicle engineering, and particularly relates to a maintenance positioning system for a military armored vehicle, which comprises a base, wherein the lower surface of the base is provided with a containing tank, and a plurality of parallel rollers are uniformly and rotatably arranged in the containing tank from front to back; the front end face of the base is provided with a ground grabbing mechanism, the left side face and the right side face of the base are symmetrically provided with two tread supporting mechanisms, and the upper surface of the base is provided with a tire wall supporting mechanism. The maintenance positioning system for the military armored vehicle can limit and fix tires with different sizes, and can prevent the tires from sinking on muddy ground. The military armored vehicle maintenance positioning system can not deviate from the ground.

Description

Military armored vehicle maintenance positioning system

Technical Field

The invention belongs to the technical field of vehicle engineering, and particularly relates to a maintenance positioning system for a military armored vehicle.

Background

Military armored vehicles are various caterpillar or wheeled military vehicles with armored protection, and are a general term for armored military or police vehicles. When the wheel type military armored vehicle is maintained on a field muddy road, wheels of the wheel type military armored vehicle need to be fixed by the positioning system, and the wheel type military armored vehicle is prevented from horizontally moving or settling in the vertical direction. The existing maintenance positioning system for the military armored vehicle has the following problems when the tire of the wheel type military armored vehicle is limited and fixed: (1) the tires with different sizes cannot be limited and fixed, the applicability is poor, and the tires cannot be guaranteed not to sink on muddy ground; (2) the positioning system has poor ground grabbing effect, can generate horizontal deviation under the action of horizontal force on a muddy road, and cannot well position the wheel type military armored vehicle.

Disclosure of Invention

Technical problem to be solved

The invention provides a maintenance positioning system for a military armored vehicle, which aims to solve the following problems when the conventional maintenance positioning system for the military armored vehicle is used for limiting and fixing tires of a wheeled military armored vehicle: (1) the tires with different sizes cannot be limited and fixed, the applicability is poor, and the tires cannot be guaranteed not to sink on muddy ground; (2) the positioning system has poor ground grabbing effect, can generate horizontal deviation under the action of horizontal force on a muddy road, and cannot well position the wheel type military armored vehicle.

(II) technical scheme

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a for military use armoured vehicle maintenance positioning system, includes the base, and the holding tank has been seted up to the lower surface of base, installs the cylinder that a plurality of are parallel to each other from going to back even rotation in the holding tank. The front end face of the base is provided with a ground grabbing mechanism, the left side face and the right side face of the base are symmetrically provided with two tread supporting mechanisms, and the upper surface of the base is provided with a tire wall supporting mechanism.

The ground grabbing mechanism comprises a mounting seat, a through groove, a lifting column, a horizontal plate, a handle and an annular plate. The mount pad level fixed mounting is on the preceding terminal surface of base. The cylindrical through groove is vertically formed in the mounting seat in a penetrating mode, and the inner wall of the through groove is rotatably provided with a vertical lifting column through threads. The upper surface of the lifting column is fixedly provided with a horizontal plate, and the circumferential surface of the horizontal plate is uniformly and fixedly provided with handles along the circumferential direction. The lower surface of the lifting column is vertically and fixedly provided with an annular plate coaxial with the lifting column. Drive horizontal plate, lift post and annular slab synchronous rotation through rotating the handle, the lift post rotates the in-process along the vertical downstream of logical groove to promote the annular slab and insert ground, thereby realize grabbing the effect on ground, avoid the mount pad to take place horizontal migration, and then avoid base, tread supporting mechanism and child wall supporting mechanism to take place horizontal migration.

The tread supporting mechanism comprises a guide sleeve, a sliding plate, a mounting plate, a first lead screw, a first vertical plate, a first supporting plate, a limiting sleeve, a second supporting plate, a vent groove, a guide rod, a second vertical plate, a second lead screw and a rubber block. The guide sleeve is horizontally and fixedly arranged on the side surface of the base, and a sliding plate is arranged in the guide sleeve in a sliding fit manner along the left and right directions. The rear end face of the sliding plate is fixedly connected with a mounting plate which is arranged along the front-back direction. And a first lead screw which is arranged along the left-right direction and penetrates through the sliding plate is rotatably arranged on the end surface of the inner part of the guide sleeve. The mounting panel upper surface fixed mounting has the first vertical board of arranging along the fore-and-aft direction, and the mounting panel upper surface is located first vertical inboard and rotates the first backup pad of installing along the fore-and-aft direction and arranging. A plurality of horizontal limiting sleeves are uniformly and fixedly mounted on the inner side wall of the first vertical plate from top to bottom, a second supporting plate is arranged in each limiting sleeve in a sliding fit mode along the left and right direction, and the end portion of the second supporting plate is hinged to the side wall of the first supporting plate through a bearing. The position that corresponds the stop collar on the first vertical inboard wall is seted up and is communicated the inside air channel of stop collar, and fixed mounting has the guide bar of arranging along left right direction on the first vertical inboard lateral wall, and sliding fit has the second vertical board that is on a parallel with first vertical board on the guide bar. And a second lead screw which is arranged along the left-right direction and penetrates through the second vertical plate is rotatably arranged on the outer side wall of the first vertical plate. A plurality of rubber blocks matched with the vent grooves are fixedly arranged on the inner side wall of the second vertical plate. After the wheeled military armored vehicle is stopped stably, the positions of the two tread supporting mechanisms are adjusted by pushing the base, so that the two tread supporting mechanisms are positioned at the front side and the rear side of a single tire; then the first screw rod is rotated to drive the two sliding plates to slide oppositely. In the process, the two first supporting plates gradually abut against the tire tread and rotate under the action of the tire tread; the first supporting plate rotates and simultaneously pushes the second supporting plate to slide in the limiting sleeve. When two first backup pads support and lean on to the tire tread can't continue to remove in opposite directions, drive the vertical board of second through rotating the second lead screw and be close to first vertical board along the guide bar, insert the air channel until the block rubber in, seal the stop collar inside to support the second backup pad through atmospheric pressure effect, and then improve the support effect of second backup pad to first backup pad.

As a preferable technical scheme of the present invention, a first spring disposed along the left-right direction is fixedly connected between the end surface of the second support plate and the end surface of the inner portion of the stopper sleeve, the second support plate compresses the first spring in the sliding process in the stopper sleeve, and after the rubber block is inserted into the vent groove, the second support plate is supported by the combined action of the first spring and the air pressure, so as to improve the supporting effect.

As a preferable technical scheme of the present invention, a plurality of vertical rubber strips are uniformly and fixedly adhered to the inner side surface of the first support plate along the left-right direction, so as to increase the friction force between the first support plate and the tire tread and avoid the axial deviation of the tire.

As a preferable technical scheme of the invention, a round cylinder is vertically and fixedly arranged on the bottom surface of the mounting plate, and a round column is vertically and slidably matched in the round cylinder. The bottom surface of the circular column is horizontally and fixedly provided with a bearing plate. The threaded rod is vertically installed on the mounting plate in a penetrating mode, and the bottom end of the threaded rod is rotatably installed on the top face of the circular column. After the first supporting plate supports the tire tread, the circular column is pushed to move downwards along the circular cylinder by rotating the threaded rod, the circular column pushes the bearing plate to move downwards until the bearing plate abuts against the ground, and therefore the pressure applied to the first supporting plate by the tire is transmitted to the ground. Because the bearing plate has a larger contact area with the ground, the sinking of the tire can be avoided.

As a preferable technical solution of the present invention, the bottom surface of the pressure-bearing plate is wavy to increase the contact area between the pressure-bearing plate and the ground, thereby ensuring that the pressure-bearing plate and the tire do not sink.

As a preferable technical scheme of the invention, the bottom surface of the annular plate is uniformly and fixedly provided with the sawteeth so as to increase the friction force between the annular plate and the ground in the rotating and descending process and facilitate the insertion of the annular plate and the lifting column into the ground.

As a preferable technical scheme of the invention, the ground grabbing mechanism further comprises an oil groove, a threaded column, a first sealing block, a second sealing block and an insertion rod. Oil grooves are formed in the lifting columns and the horizontal plate, and the top ports of the oil grooves are located on the top surface of the horizontal plate. The bottom port of oil groove has a plurality ofly, and evenly distributed is on the lateral wall of lift post. The threaded column is installed in the rotation of oil groove top port department, and threaded column bottom rotates and installs the first sealed piece with oil groove inner wall sliding fit. A plurality of second sealing blocks are arranged in the oil groove in a sliding fit mode and close to the bottom port of the oil groove. The outer end face of the second sealing block is provided with an insert rod. After the lift post inserts the underground, drive first sealed piece through rotating the screw thread post and remove along the oil groove downstream, hydraulic oil in the first sealed piece extrusion oil groove to promote the sealed piece of second through hydraulic oil and outwards slide along the oil groove level. The oil groove is released with the inserted bar to the sealed piece of second, and the inserted bar inserts in the soil underground to ground-grabbing mechanism and ground's combination effect has further been improved.

As a preferable technical scheme of the invention, the outer end surface of the inserted bar is conical so as to facilitate the inserted bar to be inserted into soil. The inserted bar passes through screw thread normal running fit with the oil groove inner wall, and the inserted bar produces rotatoryly under the sealed piece of second promotes to insert soil in-process, and the inserted bar of further being convenient for inserts in soil.

As a preferable technical solution of the present invention, the tire wall supporting mechanism includes a square frame, a third screw, a top plate, a first arc-shaped plate, and a second arc-shaped plate. The upper surface of the base is in sliding fit with a vertical square frame along the front-back direction, and the plane where the square frame is located is perpendicular to the first supporting plate. The upper surface of the base is rotatably provided with a third screw rod which is arranged along the front-back direction and penetrates through the square frame. And the third screw rod is in rotating fit with the square frame through threads. A horizontal top plate is vertically and slidably matched on the square frame. The position of the lower surface of the top plate close to the front end is vertically and fixedly provided with a first arc-shaped plate parallel to the plane of the square frame. The rear end face of the first arc-shaped plate is fixedly provided with a second arc-shaped plate. After the wheel type military armored vehicle is stopped stably, the top plate is pushed to the highest point, and then the base is pushed to enable the second arc-shaped plate to reach the position right above the tire. The top plate is loosened so that the second arcuate plate is free to fall against the top of the tire tread. And rotating the third screw to drive the square frame and the first arc-shaped plate to move towards the tire sidewall until the first arc-shaped plate abuts against the tire sidewall of the tire.

As a preferred technical scheme of the present invention, the first arc-shaped plate is uniformly arranged with a plurality of support rods, and the support rods are in sliding fit with the first arc-shaped plate along the front-back direction. The back end face of the support rod is rotatably provided with a ball. The front end face of the supporting rod is fixedly provided with a supporting sheet, and a second spring sleeved on the supporting rod is arranged between the supporting sheet and the front end face of the first arc-shaped plate. The first arc-shaped plate is abutted against the tire sidewall, the supporting rod is firstly abutted against the tire sidewall, the supporting sheet stretches the second spring, the rear end face of the supporting rod is abutted against the tire sidewall under the elastic action of the second spring, and the tire sidewall is fixed and limited. Through setting up a plurality of bracing pieces, realize having improved spacing effect to the multiple spot support of child wall.

(III) advantageous effects

The invention has at least the following beneficial effects:

(1) the invention solves the following problems when the current maintenance positioning system of the military armored vehicle carries out limit fixing on the tire of the wheel type military armored vehicle: the tires with different sizes cannot be limited and fixed, the applicability is poor, and the tires cannot be guaranteed not to sink on muddy ground; the positioning system has poor ground grabbing effect, can generate horizontal deviation under the action of horizontal force on a muddy road, and cannot well position the wheel type military armored vehicle.

(2) In the maintenance positioning system for the military armored vehicle, the tire tread of the tire is supported by the first supporting plate of the tire tread supporting mechanism, so that the tire is prevented from rolling; the first supporting plate is adjustable in angle, and the first supporting plate can be fixed in an angle adjusting mode through the second supporting plate, so that the tire tread supporting mechanism can limit and fix tires of different sizes; has better applicability. The first supporting plate transmits the pressure of the tire in the vertical direction to the bearing plate, and the contact area of the bearing plate and the bottom surface is large, so that the tire can be prevented from sinking on muddy ground.

(3) According to the maintenance positioning system for the military armored vehicle, the maintenance positioning system for the military armored vehicle is fixedly connected with the ground through the ground grabbing mechanism, and the lifting column is vertically inserted into the soil below the ground and then horizontally inserted into the soil below the ground through the inserting rod, so that the ground grabbing effect of the ground grabbing mechanism is improved, and the maintenance positioning system for the military armored vehicle cannot deviate from the ground.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of a first perspective view of a military armored vehicle maintenance positioning system according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a second perspective view of a military armored vehicle maintenance positioning system according to an embodiment of the present invention;

FIG. 3 is an elevation view of a military armored car service positioning system in an embodiment of the present invention;

FIG. 4 is a schematic diagram of a partial internal structure of a ground gripping mechanism of a maintenance positioning system for military armored vehicles according to an embodiment of the present invention;

FIG. 5 is a partial internal structural schematic diagram of a tread supporting mechanism of a military armored vehicle maintenance positioning system in an embodiment of the invention.

In the figure: 1-base, 2-roller, 3-ground gripping mechanism, 31-mounting seat, 32-through groove, 33-lifting column, 34-horizontal plate, 35-handle, 36-annular plate, 37-sawtooth, 38-oil groove, 39-threaded column, 310-first sealing block, 311-second sealing block, 312-inserted rod, 4-tread supporting mechanism, 41-guide sleeve, 42-sliding plate, 43-mounting plate, 44-first lead screw, 45-first vertical plate, 46-first support plate, 47-limit sleeve, 48-second support plate, 49-vent groove, 410-guide rod, 411-second vertical plate, 412-second lead screw, 413-rubber block, 414-first spring, 415-rubber strip, 416-a circular cylinder, 417-a circular column, 418-a bearing plate, 419-a threaded rod, 5-a tyre wall supporting mechanism, 51-a square frame, 52-a third screw rod, 53-a top plate, 54-a first arc-shaped plate, 55-a second arc-shaped plate, 56-a supporting rod, 57-a ball, 58-a supporting plate and 59-a second spring.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 5, this embodiment provides a military armored car maintenance positioning system, including base 1, the holding tank has been seted up to base 1's lower surface, installs a plurality of cylinders 2 that are parallel to each other from going to back even rotation in the holding tank. Install on the preceding terminal surface of base 1 and grab ground mechanism 3, two tread supporting mechanism 4 are installed to base 1's the bilateral symmetry, and the last surface mounting of base 1 has child wall supporting mechanism 5.

The ground grabbing mechanism 3 comprises a mounting seat 31, a through groove 32, a lifting column 33, a horizontal plate 34, a handle 35, a sawtooth 37, an annular plate 36, an oil groove 38, a threaded column 39, a first sealing block 310, a second sealing block 311 and an insert rod 312. The mounting seat 31 is horizontally and fixedly mounted on the front end surface of the base 1. A cylindrical through groove 32 is vertically formed in the mounting seat 31 in a penetrating manner, and a vertical lifting column 33 is rotatably mounted on the inner wall of the through groove 32 through threads. The upper surface of the lifting column 33 is fixedly provided with a horizontal plate 34, and the circumferential surface of the horizontal plate 34 is uniformly and fixedly provided with handles 35 along the circumferential direction. The lower surface of the lifting column 32 is vertically and fixedly provided with an annular plate 36 which is coaxial with the lifting column. The bottom surface of the annular plate 36 is uniformly and fixedly provided with sawteeth 37 so as to increase the friction force between the annular plate 36 and the ground during the rotating and descending process and facilitate the insertion of the annular plate 36 and the lifting columns 33 into the ground. Drive horizontal plate 34, lift post 33 and annular plate 36 synchronous rotation through rotating handle 35, lift post 33 rotates the in-process along the vertical downstream of logical groove 32 to promote annular plate 36 and insert ground, thereby realize grabbing the effect on the ground, avoid mount pad 31 to take place horizontal migration, and then avoid base 1, tread supporting mechanism 4 and child wall supporting mechanism 5 to take place horizontal migration. Oil grooves 38 are formed in the lifting columns 33 and the horizontal plate 34, and top ports of the oil grooves 38 are located on the top surface of the horizontal plate 34. The oil groove 38 has a plurality of bottom ports and is uniformly distributed on the outer side wall of the lifting column 33. The top port of the oil groove 38 is rotatably provided with a threaded column 39, and the bottom end of the threaded column 39 is rotatably provided with a first sealing block 310 which is in sliding fit with the inner wall of the oil groove 38. A plurality of second sealing blocks 311 are slidably fitted in the oil groove 38 near the bottom port of the oil groove 38. An insert rod 312 is mounted on the outer end surface of the second seal block 311. After the lifting column 33 is inserted into the ground, the first sealing block 310 is driven by rotating the threaded column 39 to move downwards along the oil groove 38, the first sealing block 310 presses the hydraulic oil in the oil groove 38, and the second sealing block 311 is pushed by the hydraulic oil to slide outwards horizontally along the oil groove 38. The second sealing block 311 pushes the insertion rod 312 out of the oil groove 38, and the insertion rod 312 is inserted into the underground soil, thereby further improving the coupling effect of the ground gripping mechanism 3 with the ground. The outer end surface of the insertion rod 312 is conical to facilitate the insertion of the insertion rod 312 into the soil. The insert rod 312 is rotatably matched with the inner wall of the oil groove 38 through threads, and the insert rod 312 rotates in the process of being inserted into soil under the pushing of the second sealing block 311, so that the insert rod 312 is further convenient to insert into the soil.

The tread supporting mechanism 4 includes a guide sleeve 41, a sliding plate 42, a mounting plate 43, a first lead screw 44, a first vertical plate 45, a first support plate 46, a stop collar 47, a second support plate 48, a vent groove 49, a guide rod 410, a second vertical plate 411, a second lead screw 412 and a rubber block 413. The guide sleeve 41 is horizontally and fixedly arranged on the side surface of the base 1, and a sliding plate 42 is matched in the guide sleeve 41 in a sliding mode along the left-right direction. A mounting plate 43 arranged in the front-rear direction is fixedly attached to the rear end surface of the slide plate 42. A first lead screw 44 is rotatably mounted on an inner end surface of the guide bush 41 so as to extend through the slide plate 42 in the left-right direction. The upper surface of the mounting plate 43 is fixedly provided with a first vertical plate 45 arranged along the front-rear direction, and the upper surface of the mounting plate 43 is rotatably provided with a first supporting plate 46 arranged along the front-rear direction at the inner side of the first vertical plate 45. A plurality of horizontal limiting sleeves 47 are uniformly and fixedly mounted on the inner side wall of the first vertical plate 45 from top to bottom, a second supporting plate 48 is arranged in each limiting sleeve 47 in a sliding fit mode in the left-right direction, and the end portion of each second supporting plate 48 is hinged to the side wall of the corresponding first supporting plate 46 through a bearing. The position that corresponds stop collar 47 on the first vertical board 45 inside wall has seted up the inside air channel 49 of intercommunication stop collar 47, and fixed mounting has the guide bar 410 of arranging along left and right direction on the first vertical board 45 outside wall, and sliding fit has the second vertical board 411 that is on a parallel with first vertical board 45 on guide bar 410. A second lead screw 412 is rotatably mounted on the outer side wall of the first vertical plate 45, and is arranged along the left-right direction and penetrates through the second vertical plate 411. A plurality of rubber blocks 413 which are matched with the vent groove 49 are fixedly arranged on the inner side wall of the second vertical plate 411. After the wheeled military armored vehicle is stopped stably, the positions of the two tread supporting mechanisms 4 are adjusted by pushing the base 1, so that the two tread supporting mechanisms 4 are positioned at the front side and the rear side of a single tire; then, the first lead screw 44 is rotated to slide the two sliding plates 42 toward each other. In the process, the two first supporting plates 46 are gradually abutted against the tire tread and rotate under the action of the tire tread; the first support plate 46 rotates while pushing the second support plate 48 to slide in the stop collar 47. When two first backup pads 46 support and lean on to the tire tread can't continue to move in opposite directions, drive the vertical board 411 of second and be close to first vertical board 45 along guide bar 410 through rotating second lead screw 412, insert in air channel 49 until block rubber 413, seal the stop collar 47 is inside to support second backup pad 48 through the atmospheric pressure effect, and then improve the support effect of second backup pad 48 to first backup pad 46. Fixedly connected with is along the first spring 414 that left and right direction arranged between second backup pad 48 terminal surface and the inside terminal surface of stop collar 47, and second backup pad 48 slides the in-process in stop collar 47 and compresses first spring 414, and rubber piece 413 inserts air duct 49 back, supports second backup pad 48 through the combined action of first spring 414 and atmospheric pressure to improve the effect of supporting. Evenly fixed paste along left and right direction on the medial surface of first backup pad 46 has the vertical rubber strip 415 of a plurality of to increase the frictional force between first backup pad 46 and the tire tread, avoid the tire to take place axial skew. The bottom surface of the mounting plate 43 is vertically and fixedly provided with a circular cylinder 416, and a circular column 417 is vertically and slidably matched in the circular cylinder 416. The bottom surface of the circular column 417 is horizontally and fixedly mounted with a bearing plate 418. The bottom surface of the pressure bearing plate 418 is wavy to increase the contact area between the pressure bearing plate 418 and the ground, and ensure that the pressure bearing plate 418 and the tire do not sink. A threaded rod 419 is vertically installed on the mounting plate 43 in a penetrating manner, and the bottom end of the threaded rod 419 is rotatably installed on the top surface of the circular column 417. After the first support plate 46 is supported on the tire tread, the circular column 417 is pushed to move downwards along the circular cylinder 416 by rotating the threaded rod 419, and the circular column 417 pushes the bearing plate 418 to move downwards until the bearing plate 418 is pressed against the ground, so that the pressure applied to the first support plate 46 by the tire is transmitted to the ground. Since the contact area between the pressure bearing plate 418 and the ground is large, the tire can be prevented from sinking.

In the present embodiment, the sidewall support mechanism 5 includes a square frame 51, a third lead screw 52, a top plate 53, a first arc plate 54, a second arc plate 55, a support rod 56, a ball 57, a support piece 58, and a second spring 59. The upper surface of the base 1 is slidably fitted with a vertical square frame 51 in the front-rear direction, and the plane of the square frame 51 is perpendicular to the first support plate 46. The upper surface of the base 1 is rotatably mounted with a third screw 52 arranged in the front-rear direction and penetrating through the square frame 51. The third lead screw 52 is rotatably engaged with the square frame 51 by a screw. A horizontal top plate 53 is vertically slidably fitted on the square frame 51. A first arc-shaped plate 54 parallel to the plane of the square frame 51 is vertically and fixedly arranged on the lower surface of the top plate 53 near the front end. A second arc plate 55 is fixedly mounted on the rear end surface of the first arc plate 54. After the wheeled military armored vehicle is stopped stably, the top plate 53 is pushed to the highest point, and then the base 1 is pushed to enable the second arc-shaped plate 55 to reach the position right above the tire. Releasing the top plate 53 allows the second arcuate plate 55 to fall freely against the top of the tire tread. Rotating the third lead screw 52 moves the square frame 51 and the first arc plate 54 toward the tire sidewall. The first arc-shaped plate 54 is evenly provided with a plurality of support rods 56, and the support rods 56 are in sliding fit with the first arc-shaped plate 54 along the front-back direction. The support rod 56 is rotatably mounted with a ball 57 at a rear end surface thereof. A support piece 58 is fixedly mounted on the front end surface of the support rod 56, and a second spring 59 sleeved on the support rod 56 is mounted between the support piece 58 and the front end surface of the first arc-shaped plate 54. In the process that the first arc-shaped plate 54 abuts against the tire sidewall, the supporting rod 56 firstly abuts against the tire sidewall, the supporting sheet 58 stretches the second spring 59, the rear end face of the supporting rod 56 abuts against the tire sidewall through the elastic force of the second spring 59, and the fixed limit of the tire sidewall is realized. Through setting up a plurality of bracing pieces 56, realize having improved spacing effect to the multiple spot support of child wall.

The use steps of the military armored car maintenance positioning system in the embodiment are as follows: after the wheeled military armored vehicle is stopped stably, the top plate 53 is pushed to the highest point, and then the base 1 is pushed to enable the second arc-shaped plate 55 to reach the position right above the tire. Releasing the top plate 53 allows the second arcuate plate 55 to fall freely against the top of the tire tread. The third screw 52 is rotated to drive the square frame 51 and the first arc-shaped plate 54 to move towards the tire sidewall until the rear end faces of all the support rods 56 are pressed against the tire sidewall, so that the tire sidewall is fixed and limited. Support spacingly through tread supporting mechanism 4 both sides around the tire tread, insert the ground through grabbing mechanism 3 at last and fix military use armoured vehicle maintenance positioning system is whole to fix the tire. It should be noted that, in the using process of the present invention, two sets of tires are generally adopted to be matched with each other to fix the tires on two sides of the armored vehicle.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a for military use armoured vehicle maintenance positioning system which characterized in that: the maintenance positioning system for the military armored car comprises a base (1), wherein a containing groove is formed in the lower surface of the base (1), and a plurality of parallel rollers (2) are uniformly and rotatably installed in the containing groove from front to back; the ground grabbing mechanism (3) is installed on the front end face of the base (1), the left side face and the right side face of the base (1) are symmetrically provided with two tread supporting mechanisms (4), and the upper surface of the base (1) is provided with a tire wall supporting mechanism (5);

the ground grabbing mechanism (3) comprises a mounting seat (31), a through groove (32), a lifting column (33), a horizontal plate (34), a handle (35) and an annular plate (36); the mounting seat (31) is horizontally and fixedly mounted on the front end surface of the base (1); a cylindrical through groove (32) vertically penetrates through the mounting seat (31), and a vertical lifting column (33) is rotatably mounted on the inner wall of the through groove (32) through threads; a horizontal plate (34) is fixedly arranged on the upper surface of the lifting column (33), and handles (35) are uniformly and fixedly arranged on the circumferential surface of the horizontal plate (34) along the circumferential direction; the lower surface of the lifting column (32) is vertically and fixedly provided with an annular plate (36) coaxial with the lifting column;

the tread supporting mechanism (4) comprises a guide sleeve (41), a sliding plate (42), a mounting plate (43), a first lead screw (44), a first vertical plate (45), a first supporting plate (46), a limiting sleeve (47), a second supporting plate (48), a vent groove (49), a guide rod (410), a second vertical plate (411), a second lead screw (412) and a rubber block (413); the guide sleeve (41) is horizontally and fixedly arranged on the side surface of the base (1), and a sliding plate (42) is matched in the guide sleeve (41) in a sliding mode along the left-right direction; the rear end surface of the sliding plate (42) is fixedly connected with a mounting plate (43) which is arranged along the front-back direction; a first lead screw (44) which is arranged along the left-right direction and penetrates through the sliding plate (42) is rotatably arranged on the inner end surface of the guide sleeve (41); a first vertical plate (45) arranged along the front-back direction is fixedly arranged on the upper surface of the mounting plate (43), and a first supporting plate (46) arranged along the front-back direction is rotatably arranged on the upper surface of the mounting plate (43) at the inner side of the first vertical plate (45); a plurality of horizontal limiting sleeves (47) are uniformly and fixedly arranged on the inner side wall of the first vertical plate (45) from top to bottom, a second supporting plate (48) is arranged in each limiting sleeve (47) in a sliding fit mode along the left-right direction, and the end part of each second supporting plate (48) is hinged to the side wall of the first supporting plate (46) through a bearing; a vent groove (49) communicated with the inside of the limiting sleeve (47) is formed in the position, corresponding to the limiting sleeve (47), on the inner side wall of the first vertical plate (45), guide rods (410) arranged along the left-right direction are fixedly mounted on the outer side wall of the first vertical plate (45), and a second vertical plate (411) parallel to the first vertical plate (45) is in sliding fit with the guide rods (410); a second lead screw (412) which is arranged along the left-right direction and penetrates through the second vertical plate (411) is rotatably arranged on the outer side wall of the first vertical plate (45); a plurality of rubber blocks (413) which are matched with the vent grooves (49) are fixedly arranged on the inner side wall of the second vertical plate (411).

2. The military armored car maintenance positioning system of claim 1, wherein: and a first spring (414) arranged along the left-right direction is fixedly connected between the end surface of the second supporting plate (48) and the inner end surface of the limiting sleeve (47).

3. The military armored car maintenance positioning system of claim 1, wherein: a plurality of vertical rubber strips (415) are uniformly and fixedly stuck on the inner side surface of the first supporting plate (46) along the left-right direction.

4. The military armored car maintenance positioning system of claim 1, wherein: a circular cylinder (416) is vertically and fixedly installed on the bottom surface of the installation plate (43), and a circular column (417) is vertically and slidably matched in the circular cylinder (416); the bottom surface of the circular column (417) is horizontally and fixedly provided with a bearing plate (418); a threaded rod (419) vertically penetrates through the mounting plate (43), and the bottom end of the threaded rod (419) is rotatably mounted on the top surface of the circular column (417).

5. The military armored car maintenance positioning system of claim 4, wherein: the bottom surface of the pressure bearing plate (418) is wave-shaped.

6. The military armored car maintenance positioning system of claim 1, wherein: sawteeth (37) are uniformly and fixedly arranged on the bottom surface of the annular plate (36).

7. The military armored car maintenance positioning system of claim 1, wherein: the ground grabbing mechanism (3) further comprises an oil groove (38), a threaded column (39), a first sealing block (310), a second sealing block (311) and an inserted rod (312); oil grooves (38) are formed in the lifting columns (33) and the horizontal plate (34), and the top ports of the oil grooves (38) are located on the top surface of the horizontal plate (34); a plurality of oil grooves (38) are arranged at the bottom end ports and are uniformly distributed on the outer side wall of the lifting column (33); a threaded column (39) is rotatably mounted at the top port of the oil groove (38), and a first sealing block (310) in sliding fit with the inner wall of the oil groove (38) is rotatably mounted at the bottom end of the threaded column (39); a plurality of second sealing blocks (311) are slidably matched at the port, close to the bottom of the oil groove (38), in the oil groove (38); an insert rod (312) is arranged on the outer end face of the second sealing block (311).

8. The military armored car maintenance positioning system of claim 7, wherein: the outer end surface of the inserted rod (312) is conical; the inserted rod (312) is in threaded rotating fit with the inner wall of the oil groove (38).

9. The military armored car maintenance positioning system of claim 1, wherein: the tire wall supporting mechanism (5) comprises a square frame (51), a third screw rod (52), a top plate (53), a first arc-shaped plate (54) and a second arc-shaped plate (55); the upper surface of the base (1) is in sliding fit with a vertical square frame (51) along the front-back direction, and the plane of the square frame (51) is vertical to the first supporting plate (46); a third screw rod (52) which is arranged along the front-back direction and penetrates through the square frame (51) is rotatably arranged on the upper surface of the base (1); the third screw rod (52) is in rotating fit with the square frame (51) through threads; a horizontal top plate (53) is vertically matched on the square frame (51) in a sliding way; a first arc-shaped plate (54) parallel to the plane of the square frame (51) is vertically and fixedly arranged at the position, close to the front end, of the lower surface of the top plate (53); the rear end face of the first arc-shaped plate (54) is fixedly provided with a second arc-shaped plate (55).

10. The military armored car maintenance positioning system of claim 9, wherein: the first arc-shaped plate (54) is uniformly provided with a plurality of supporting rods (56), and the supporting rods (56) are in sliding fit with the first arc-shaped plate (54) along the front-back direction; the rear end surface of the support rod (56) is rotatably provided with a ball (57); a support sheet (58) is fixedly arranged on the front end face of the support rod (56), and a second spring (59) sleeved on the support rod (56) is arranged between the support sheet (58) and the front end face of the first arc-shaped plate (54).