32results about How to "Small vertical length" patented technology

A transaxle (1), having a hydraulic drive unit (20) and a pair of left and right wheel support units (2L and 2R), is suspended from a vehicle frame so as to be turnable around a turning-center axis oriented in a fore-and-aft direction of a vehicle. The hydraulic drive unit (20) comprises: a pair of left and right hydraulic motors (23L and 23R) having respective left and right horizontal motor shafts (23b); a center section (22) formed therein with an oil passage for hydraulically connecting at least one of the hydraulic motors to a hydraulic pump, the center section having motor attachment surfaces onto which the hydraulic motors are attached; and a pair of left and right axle casings (2L and 2R) containing the respective hydraulic motors and supporting the respective motor shafts. The pair of wheel support units (30L and 30R), supporting respective left and right travel wheels (1L and 1R), are joined to respective outer ends of the left and right axle casings, and drivingly connected to the respective motor shafts (23b).

A hydraulic transaxle has an axle casing and a pair of hydraulic motors disposed in the axle casing. The hydraulic motors have respective motor shafts and respective moveable swash plates. An axis of tilt of each moveable swash plate is offset with respect to a longitudinal axis of the respective motor shaft, and the moveable swash plates are operatively engaged to a steering operation device.

The invention discloses a three-dimensional shock insulation support capable of presetting vertical early rigidity. The three-dimensional shock insulation support comprises a laminated rubber shock insulation support and a vertical shock insulation support which are sequentially connected in series in the vertical direction and is characterized in that a back pressure device is arranged in a guide sleeve of the vertical shock insulation support and comprises two sets of prepressing steel cables and two floating pressing plates, at least three prepreessing steel cables are included in each set, and the two sets of prepressing steel cables are distributed between a rubber air spring and the guide sleeve in a linear state. One ends of one set of prepressing steel cables are fixed to the floating pressing plate adjacent to a driving pressing plate, and the other ends of one set of prepressing steel cables penetrate through the floating pressing plate adjacent to a base to be fixed to the base. One ends of the other set of prepressing steel cables are fixed to the floating pressing plate adjacent to the base, and the other ends of the other set of prepressing steel cables penetrate through the floating pressing plate adjacent to the driving pressing plate to be fixed to the driving pressing plate. The two sets of prepressing steel cables are tensioned, so that the rubber air spring is clamped between the two floating pressing plates all the time.

The invention discloses a three-dimensional shock-insulation device capable of presetting vertical early stiffness. The three-dimensional shock-insulation device capable of presetting the vertical early stiffness includes a laminated rubber shock-insulation support and a vertical shock-insulation support, wherein the laminated rubber shock-insulation support and the vertical shock-insulation support are sequentially connected in series from top to bottom. The three-dimensional shock-insulation device capable of presetting the vertical early stiffness is characterized in that a back-pressing device is further arranged between two end plates of the vertical shock-insulation support and includes two sets of prepressing steel cables and two floating platens, wherein the number of each set of the prepressing steel cables is at least three, the two floating platens are respectively arranged on a guide rod between one end plate and a belleville spring set in a sleeving mode; the two sets of the prepressing steel cables are symmetrically distributed on the periphery of the belleville spring set around the axis of the guide rod in a linear state, one ends of each set of the prepressing steel cables are fixed to one corresponding floating platen, the other ends of each set of the prepressing steel cables penetrate through the other corresponding floating platen and are fixed to the end plate adjacent to the floating platen; and the two sets of the prepressing steel cables are tensioned so as to clamp the belleville spring set between the two floating platens all the time.

The invention relates to a three-dimensional vibration isolation device capable of presetting the vertical initial rigidity. The three-dimensional vibration isolation device comprises a vertical isolation vibration support seat and a laminated rubber vibration isolation support seat which are mutually connected in series. The three-dimensional vibration isolation device is characterized in that a back pressure device is also arranged in a guide sleeve of the vertical vibration isolation support seat; the back pressure device comprises more than three pre-pressing steel wire ropes, steel wire rope direction changing elements with the same number as the pre-pressing steel wire rope and a floating back pressure steel plate; the pre-pressing steel wire ropes are in a folding line state; in addition, one end of each pre-pressing steel wire rope is symmetrically fixed on the floating back pressure steel plate by using the axial line of the guide sleeve as the symmetry axis; the other end of each pre-pressing steel wire rope is folded back after passing and bypassing through the corresponding steel wire rope direction changing element, and then passes through the floating back pressure steel plate beside the fixing point of the pre-pressing steel wire rope on the floating back pressure steel plate to be fixed on the base; the pre-pressing steel wire rope is tensioned to the tension required by the pre-setting of the vertical initial rigidity, so that a cylindrical spiral compression spring is always clamped between a driving press plate and the floating back pressure steel plate.

The invention discloses a three-dimensional vibration isolation support with adjustable vertical early-stage rigidity. The three-dimensional vibration isolation support comprises a stacked rubber vibration isolation support and a vertical vibration isolation support which are sequentially connected in series from top to bottom, and is characterized in that a reverse pressing device is further arranged in a guide sleeve of the vertical vibration isolation support; the reverse pressing device comprises two groups of pre-pressing steel ropes and two floating pressing plates, wherein the two groups of pre-pressing steel ropes are distributed between a rubber air spring and the guide sleeve respectively; one ends of one group of the pre-pressing steel ropes are fixed on the floating pressing plate adjacent to a driving pressing plate, and the other ends of one group of the pre-pressing steel ropes penetrate through the floating pressing plate adjacent to a base to be fixed on the base; one ends of the other group of pre-pressing steel ropes are fixed on the floating pressing plate adjacent to the base respectively, and the other ends of the other group of pre-pressing steel ropes penetrate through the floating pressing plate adjacent to the driving pressing plate to be fixed on the driving pressing plate; a rigging spiral buckle is connected on each pre-pressing steel rope in series; and when the two groups of pre-pressing steel ropes are tensioned, the rubber air spring is clamped between the two floating pressing plates all the time.

The invention discloses a three-dimensional vibration isolation device with adjustable vertical early-stage rigidity. The device comprises a stacked rubber vibration isolation support and a vertical vibration isolation support which are sequentially connected in series from top to bottom, and is characterized in that a backward pressing device is arranged in a guide sleeve of the vertical vibration isolation support; the backward pressing device comprises two groups of pre-pressing steel cables and two floating pressing plates, wherein the two groups of pre-pressing steel cables are distributed in a central hole of a cylindrical spiral compression spring in a straight-line state respectively; one end of one group of the pre-pressing steel cable is fixed on the floating pressing plate adjacent to a driving pressing plate respectively, and the other end of the pre-pressing steel cable penetrates through the floating pressing plate adjacent to a base respectively and then is anchored on the base through a steel cable self-locking tensioning anchorage device; one end of the other group of the pre-pressing steel cable is fixed on the floating pressing plate adjacent to the base respectively, and the other end of the other group of the pre-pressing steel cable penetrates through the floating pressing plate adjacent to the driving pressing plate respectively and then is anchored on the driving pressing plate through a steel cable self-locking tensioning anchorage device; and the two groups of pre-pressing steel cables are tensioned, so that the cylindrical spiral compression spring is clamped between the two floating pressing plates all the time.

The invention discloses a three-dimensional seismic isolation bearing capable of adjusting vertical early rigidity. The three-dimensional seismic isolation bearing comprises a laminated rubber seismic isolation bearing and a vertical seismic isolation bearing which are sequentially connected with each other in series up and down and is characterized in that a back pressure device is further arranged in a guide sleeve of the vertical seismic isolation bearing, the back pressure device comprises two groups of prepressing steel cables and two floating platens, wherein the two groups of prepressing steel cables are distributed between a composite spring and the guide sleeve, one end of each prepressing steel cable of one group of prepressing steel cables is fixed on the floating platen adjacent to a driving platen, and the other end of each prepressing steel cable of one group of prepressing steel cables penetrates through the floating platen adjacent to a base and is anchored on the base by a steel cable self-locking and tensioning anchorage device; one end of each prepressing steel cable of the other group of prepressing steel cables is fixed on the floating platen adjacent to the base, and the other end of each prepressing steel cable of the other group of prepressing steel cables penetrates through the floating platen adjacent to the driving platen and is anchored on the driving platen by the steel cable self-locking and tensioning anchorage device; the two groups of prepressing steel cables are tensioned, so that the composite spring is clamped between the two floating platens all the time.

The invention discloses an adjustable vertical early-stage rigid three-dimensional shock insulation support. The three-dimensional shock insulation support comprises a laminated rubber shock isolation support and a vertical shock isolation support which are vertically and serially connected in sequence and is characterized in that a reverse pressing device is further arranged in a guiding sleeve of the vertical shock isolation support and comprises two groups of pre-pressing steel cables and two floating press plates, the two groups of pre-pressing steel cables are distributed between a rubber air spring and the guiding sleeve, one end of one group of pre-pressing steel cables is fixed to the corresponding floating press plate adjacent to a driving press plate, and the other end of the group penetrates through the corresponding floating press plate adjacent to base to be anchored on the base through a steel cable self-locking and tensioning anchor. One end of the other group of pre-pressing steel cables is fixed to the corresponding floating press plate adjacent to the base, and the other end of the other group of pre-pressing steel cables penetrates through the corresponding floating press plate adjacent to the corresponding driving press plate to be anchored on the corresponding driving press plate through a steel cable self-locking and tensioning anchor. The two groups of pre-pressing steel cables are tensioned, so that the rubber air spring is always clamped between the two floating press plates.

A transaxle (1), having a hydraulic drive unit (20) and a pair of left and right wheel support units (2L and 2R), is suspended from a vehicle frame so as to be turnable around a turning-center axis oriented in a fore-and-aft direction of a vehicle. The hydraulic drive unit (20) comprises: a pair of left and right hydraulic motors (23L and 23R) having respective left and right horizontal motor shafts (23b); a center section (22) formed therein with an oil passage for hydraulically connecting at least one of the hydraulic motors to a hydraulic pump, the center section having motor attachment surfaces onto which the hydraulic motors are attached; and a pair of left and right axle casings (2L and 2R) containing the respective hydraulic motors and supporting the respective motor shafts. The pair of wheel support units (30L and 30R), supporting respective left and right travel wheels (1L and 1R), are joined to respective outer ends of the left and right axle casings, and drivingly connected to the respective motor shafts (23b).

The invention discloses a three-dimensional shock isolation device with adjustable vertical early stiffness. The three-dimensional shock isolation device comprises a laminated rubber shock isolation bearing and a vertical shock isolation bearing which are sequentially connected with each other up and down in series, and is characterized in that a back pressure device is also arranged between two end plates of the vertical shock isolation bearing, and the back pressure device comprises two groups of pre-pressing steel cables and two floating platens, wherein the two floating platens are respectively sleeved on a guide rod between one end plate and a cylindrical helical compression spring; the two groups of pre-pressing steel cables are respectively distributed at the periphery of the cylindrical helical compression spring around the axis of the guide rod in a straight line state, one head of each pre-pressing steel cable of each group of pre-pressing steel cables is fixed on one floating platen, and the other head of each pre-pressing steel cable of each group of pre-pressing steel cables penetrates through the other floating platen and is anchored on the end plate adjacent to the floating platen by a steel cable self-locking tensioning anchor; the two groups of pre-pressing steel cables are tensioned, so that the cylindrical helical compression spring is clamped between the two floating platens all the time.

Front and rear support members which support a deflector plate configured to project upward above a front header when a roof is open include respective joint portions where respective lower portions thereof are joined to each other. The deflector plate includes deflector lower portions which project downward at respective positions where the deflector lower portions do not interfere with the joint portions of the front and rear support members when the deflector plate is located at a lowermost position. An elevating mechanism (springs, groove portions pins) which is configured to elevate or lower the deflector plate relative to the front and rear support members is provided between the deflector lower portions and the front or rear support members.

The invention discloses a three-dimensional base-isolation device capable of adjusting vertical early stage rigidity; the three-dimensional base-isolation device comprises a lamination rubber base isolation bearer and a vertical base isolation bearer connected up and down in series; the features are that a back pressure device is arranged between two end plates of the vertical base isolation bearer; the back pressure device comprises two precompressed steel ropes and two floating pressure plates; the two floating pressure plates are respectively sleeved on a guide rod between one end plate and a disc spring assembly; the two precompressed steel ropes are symmetrically distributed around the disc spring assembly in a linear state by respectively winding the guide rod axis; in addition, one end of each precompressed steel rope is respectively fixed on one floating pressure plate, and the other end respectively penetrates the other floating pressure plate and is anchored on the end plate adjacent to the floating pressure plate by a steel rope self-locking tensioning anchorage device; the two precompressed steel ropes can be tensioned, so the disc spring assembly can be always clamped between the two floating pressure plates.

The invention discloses a three dimensional base isolation device capable of adjusting vertical early stage rigidity; the three dimensional base isolation device comprises a lamination rubber base isolation bearer and a vertical base isolation bearer connected in series up and down; the features are that a back pressure device is arranged in a guide sleeve of the vertical base isolation bearer; the back pressure device comprises two sets of precompressed steel ropes and two floating pressure plates; the two sets of precompressed steel ropes are respectively distributed in the central hole of a disc type spring assembly in a linear state, wherein one end of one set of the precompressed steel rope is respectively fixed on the floating pressure plate adjacent to a drive pressure plate, and the other end respectively penetrates the floating pressure plate adjacent to the pedestal and is anchored on the pedestal by a steel rope self-locking tensioning anchorage device; one end of the other set of precompressed steel rope is respectively fixed on the floating pressure plate adjacent to the pedestal, and the other end respectively penetrates the floating pressure plate adjacent to the drive pressure plate and is anchored on the drive pressure plate by the steel rope self-locking tensioning anchorage device; the two sets of precompressed steel ropes are tensioned, so the disc type spring assembly is always clamped between the two floating pressure plates.